28270532 has 12 divisors (see below), whose sum is σ = 49613760. Its totient is φ = 14095176.

The previous prime is 28270523. The next prime is 28270559. The reversal of 28270532 is 23507282.

It is a junction number, because it is equal to n+sod(n) for n = 28270495 and 28270504.

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, 8408 + ... + 11279.

It is an arithmetic number, because the mean of its divisors is an integer number (4134480).

Almost surely, 2^28270532 is an apocalyptic number.

It is an amenable number.

28270532 is a deficient number, since it is larger than the sum of its proper divisors (21343228).

28270532 is a wasteful number, since it uses less digits than its factorization.

28270532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20050 (or 20048 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 28270532 is about 5317.0040436321. The cubic root of 28270532 is about 304.6337339465.

The spelling of 28270532 in words is "twenty-eight million, two hundred seventy thousand, five hundred thirty-two".