28994032 has 30 divisors (see below), whose sum is σ = 57229224. Its totient is φ = 14230080.

The previous prime is 28993999. The next prime is 28994047. The reversal of 28994032 is 23049982.

It is a junction number, because it is equal to n+sod(n) for n = 28993982 and 28994000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59293 + ... + 59779.

Almost surely, 2^28994032 is an apocalyptic number.

It is an amenable number.

28994032 is a deficient number, since it is larger than the sum of its proper divisors (28235192).

28994032 is an equidigital number, since it uses as much as digits as its factorization.

28994032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 28994032 is about 5384.6106637342. The cubic root of 28994032 is about 307.2106057356.

The spelling of 28994032 in words is "twenty-eight million, nine hundred ninety-four thousand, thirty-two".