747088428 has 24 divisors (see below), whose sum is σ = 1762795440. Its totient is φ = 246231040.

The previous prime is 747088393. The next prime is 747088439. The reversal of 747088428 is 824880747.

It is a happy number.

It is a super-2 number, since 2×747088428² = 1116282238503022368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348693 + ... + 350828.

It is an arithmetic number, because the mean of its divisors is an integer number (73449810).

Almost surely, 2^747088428 is an apocalyptic number.

It is an amenable number.

747088428 is an abundant number, since it is smaller than the sum of its proper divisors (1015707012).

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

747088428 is a wasteful number, since it uses less digits than its factorization.

747088428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699617 (or 699615 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 48.

The square root of 747088428 is about 27332.9183952245. The cubic root of 747088428 is about 907.3830656275.

The spelling of 747088428 in words is "seven hundred forty-seven million, eighty-eight thousand, four hundred twenty-eight".