28152684 has 60 divisors (see below), whose sum is σ = 84117264. Its totient is φ = 8042976.

The previous prime is 28152647. The next prime is 28152701. The reversal of 28152684 is 48625182.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3939 + ... + 8474.

Almost surely, 2^28152684 is an apocalyptic number.

It is an amenable number.

28152684 is an abundant number, since it is smaller than the sum of its proper divisors (55964580).

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

28152684 is a wasteful number, since it uses less digits than its factorization.

28152684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12436 (or 12425 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 28152684 is about 5305.9102894791. The cubic root of 28152684 is about 304.2098476090.

The spelling of 28152684 in words is "twenty-eight million, one hundred fifty-two thousand, six hundred eighty-four".