1223790336 has 144 divisors (see below), whose sum is σ = 3656879520. Its totient is φ = 403660800.

The previous prime is 1223790329. The next prime is 1223790377. The reversal of 1223790336 is 6330973221.

1223790336 is a `hidden beast` number, since 1 + 2 + 237 + 90 + 336 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1223790336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697236 + ... + 698988.

Almost surely, 2^1223790336 is an apocalyptic number.

1223790336 is a gapful number since it is divisible by the number (16) 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 1223790336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828439760).

1223790336 is an abundant number, since it is smaller than the sum of its proper divisors (2433089184).

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

1223790336 is a wasteful number, since it uses less digits than its factorization.

1223790336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 1223790336 is about 34982.7148174638. The cubic root of 1223790336 is about 1069.6351672018.

The spelling of 1223790336 in words is "one billion, two hundred twenty-three million, seven hundred ninety thousand, three hundred thirty-six".