28486028 has 12 divisors (see below), whose sum is σ = 50110200. Its totient is φ = 14168832.

The previous prime is 28486013. The next prime is 28486037. The reversal of 28486028 is 82068482.

It is a super-2 number, since 2×28486028² = 1622907582433568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28485982 and 28486000.

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, 17678 + ... + 19221.

It is an arithmetic number, because the mean of its divisors is an integer number (4175850).

Almost surely, 2^28486028 is an apocalyptic number.

It is an amenable number.

28486028 is a deficient number, since it is larger than the sum of its proper divisors (21624172).

28486028 is a wasteful number, since it uses less digits than its factorization.

28486028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37096 (or 37094 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 28486028 is about 5337.2303678968. The cubic root of 28486028 is about 305.4058129434.

The spelling of 28486028 in words is "twenty-eight million, four hundred eighty-six thousand, twenty-eight".