749272524 has 384 divisors, whose sum is σ = 2558976000. Its totient is φ = 167650560.

The previous prime is 749272493. The next prime is 749272571. The reversal of 749272524 is 425272947.

It is a super-2 number, since 2×749272524² = 1122818630442661152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 127 ways as a sum of consecutive naturals, for example, 11183139 + ... + 11183205.

It is an arithmetic number, because the mean of its divisors is an integer number (6664000).

Almost surely, 2^749272524 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 749272524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279488000).

749272524 is an abundant number, since it is smaller than the sum of its proper divisors (1809703476).

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

749272524 is a wasteful number, since it uses less digits than its factorization.

749272524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 122 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 749272524 is about 27372.8428191154. The cubic root of 749272524 is about 908.2664432483.

The spelling of 749272524 in words is "seven hundred forty-nine million, two hundred seventy-two thousand, five hundred twenty-four".