28955408 has 20 divisors (see below), whose sum is σ = 56253468. Its totient is φ = 14438400.

The previous prime is 28955393. The next prime is 28955417. The reversal of 28955408 is 80455982.

It can be written as a sum of positive squares in 2 ways, for example, as 13337104 + 15618304 = 3652^2 + 3952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4160 + ... + 8672.

Almost surely, 2^28955408 is an apocalyptic number.

It is an amenable number.

28955408 is a deficient number, since it is larger than the sum of its proper divisors (27298060).

28955408 is a wasteful number, since it uses less digits than its factorization.

28955408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 28955408 is about 5381.0229510754. The cubic root of 28955408 is about 307.0741296583.

The spelling of 28955408 in words is "twenty-eight million, nine hundred fifty-five thousand, four hundred eight".