28270536 has 32 divisors (see below), whose sum is σ = 80773440. Its totient is φ = 8077248.

The previous prime is 28270523. The next prime is 28270559. The reversal of 28270536 is 63507282.

It is a junction number, because it is equal to n+sod(n) for n = 28270497 and 28270506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83971 + ... + 84306.

It is an arithmetic number, because the mean of its divisors is an integer number (2524170).

Almost surely, 2^28270536 is an apocalyptic number.

It is an amenable number.

28270536 is an abundant number, since it is smaller than the sum of its proper divisors (52502904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28270536 is a wasteful number, since it uses less digits than its factorization.

28270536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168293 (or 168289 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 28270536 is about 5317.0044197838. The cubic root of 28270536 is about 304.6337483141.

The spelling of 28270536 in words is "twenty-eight million, two hundred seventy thousand, five hundred thirty-six".