749523456 has 400 divisors, whose sum is σ = 2566764288. Its totient is φ = 215654400.

The previous prime is 749523451. The next prime is 749523461. The reversal of 749523456 is 654325947.

749523456 is a `hidden beast` number, since 74 + 9 + 523 + 4 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (749523451) and next prime (749523461).

It is a super-2 number, since 2×749523456² = 1123570822188367872, which contains 22 as substring.

Its product of digits (907200) is a multiple of the sum of its prime divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749523451) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 14141926 + ... + 14141978.

Almost surely, 2^749523456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749523456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283382144).

749523456 is an abundant number, since it is smaller than the sum of its proper divisors (1817240832).

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

749523456 is a wasteful number, since it uses less digits than its factorization.

749523456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 100 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 749523456 is about 27377.4260294864. The cubic root of 749523456 is about 908.3678249974.

The spelling of 749523456 in words is "seven hundred forty-nine million, five hundred twenty-three thousand, four hundred fifty-six".