28572630 has 32 divisors (see below), whose sum is σ = 68796000. Its totient is φ = 7594752.

The previous prime is 28572623. The next prime is 28572679. The reversal of 28572630 is 3627582.

It is a junction number, because it is equal to n+sod(n) for n = 28572591 and 28572600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9106 + ... + 11834.

It is an arithmetic number, because the mean of its divisors is an integer number (2149875).

Almost surely, 2^28572630 is an apocalyptic number.

28572630 is an abundant number, since it is smaller than the sum of its proper divisors (40223370).

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

28572630 is a wasteful number, since it uses less digits than its factorization.

28572630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088.

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

The square root of 28572630 is about 5345.3372204193. The cubic root of 28572630 is about 305.7149937179.

The spelling of 28572630 in words is "twenty-eight million, five hundred seventy-two thousand, six hundred thirty".