28070524 has 24 divisors (see below), whose sum is σ = 51889040. Its totient is φ = 13250304.

The previous prime is 28070509. The next prime is 28070533. The reversal of 28070524 is 42507082.

It is a junction number, because it is equal to n+sod(n) for n = 28070492 and 28070501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32482 + ... + 33334.

Almost surely, 2^28070524 is an apocalyptic number.

It is an amenable number.

28070524 is a deficient number, since it is larger than the sum of its proper divisors (23818516).

28070524 is a wasteful number, since it uses less digits than its factorization.

28070524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 28070524 is about 5298.1623229191. The cubic root of 28070524 is about 303.9136267775.

The spelling of 28070524 in words is "twenty-eight million, seventy thousand, five hundred twenty-four".