734932728 has 48 divisors (see below), whose sum is σ = 1994592600. Its totient is φ = 244466880.

The previous prime is 734932721. The next prime is 734932753. The reversal of 734932728 is 827239437.

It is a super-2 number, since 2×734932728² = 1080252229371043968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734932721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24958 + ... + 45746.

Almost surely, 2^734932728 is an apocalyptic number.

It is an amenable number.

734932728 is an abundant number, since it is smaller than the sum of its proper divisors (1259659872).

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

734932728 is a wasteful number, since it uses less digits than its factorization.

734932728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21292 (or 21285 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 734932728 is about 27109.6427125110. The cubic root of 734932728 is about 902.4348586485.

The spelling of 734932728 in words is "seven hundred thirty-four million, nine hundred thirty-two thousand, seven hundred twenty-eight".