28529408 has 18 divisors (see below), whose sum is σ = 56947884. Its totient is φ = 14264576.

The previous prime is 28529387. The next prime is 28529411. The reversal of 28529408 is 80492582.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55466 + ... + 55977.

Almost surely, 2^28529408 is an apocalyptic number.

It is an amenable number.

28529408 is a deficient number, since it is larger than the sum of its proper divisors (28418476).

28529408 is an equidigital number, since it uses as much as digits as its factorization.

28529408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111459 (or 111445 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 28529408 is about 5341.2927274210. The cubic root of 28529408 is about 305.5607635819.

The spelling of 28529408 in words is "twenty-eight million, five hundred twenty-nine thousand, four hundred eight".