1224953280 has 392 divisors, whose sum is σ = 4497476400. Its totient is φ = 317509632.

The previous prime is 1224953239. The next prime is 1224953321. The reversal of 1224953280 is 823594221.

It is a happy number.

1224953280 is a `hidden beast` number, since 1 + 2 + 2 + 49 + 532 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (1224953239) and next prime (1224953321).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 13763476 + ... + 13763564.

Almost surely, 2^1224953280 is an apocalyptic number.

1224953280 is a gapful number since it is divisible by the number (10) 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 1224953280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2248738200).

1224953280 is an abundant number, since it is smaller than the sum of its proper divisors (3272523120).

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

1224953280 is an frugal number, since it uses more digits than its factorization.

1224953280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1224953280 is about 34999.3325650647. The cubic root of 1224953280 is about 1069.9738777214.

The spelling of 1224953280 in words is "one billion, two hundred twenty-four million, nine hundred fifty-three thousand, two hundred eighty".