1223490744 has 320 divisors, whose sum is σ = 4139942400. Its totient is φ = 330220800.

The previous prime is 1223490721. The next prime is 1223490767. The reversal of 1223490744 is 4470943221.

1223490744 is a `hidden beast` number, since 122 + 3 + 490 + 7 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (1223490721) and next prime (1223490767).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1223490699 and 1223490708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9339559 + ... + 9339689.

It is an arithmetic number, because the mean of its divisors is an integer number (12937320).

Almost surely, 2^1223490744 is an apocalyptic number.

1223490744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223490744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2069971200).

1223490744 is an abundant number, since it is smaller than the sum of its proper divisors (2916451656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223490744 is a wasteful number, since it uses less digits than its factorization.

1223490744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1223490744 is about 34978.4325549330. The cubic root of 1223490744 is about 1069.5478754812.

The spelling of 1223490744 in words is "one billion, two hundred twenty-three million, four hundred ninety thousand, seven hundred forty-four".