232628728 has 16 divisors (see below), whose sum is σ = 436349880. Its totient is φ = 116268768.

The previous prime is 232628719. The next prime is 232628729. The reversal of 232628728 is 827826232.

It is a super-2 number, since 2×232628728² = 108232250181795968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232628729) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27051 + ... + 34597.

Almost surely, 2^232628728 is an apocalyptic number.

It is an amenable number.

232628728 is a deficient number, since it is larger than the sum of its proper divisors (203721152).

232628728 is a wasteful number, since it uses less digits than its factorization.

232628728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11406 (or 11402 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 232628728 is about 15252.1712552672. The cubic root of 232628728 is about 615.0179367717.

The spelling of 232628728 in words is "two hundred thirty-two million, six hundred twenty-eight thousand, seven hundred twenty-eight".