30872432 has 10 divisors (see below), whose sum is σ = 59815368. Its totient is φ = 15436208.

The previous prime is 30872419. The next prime is 30872437. The reversal of 30872432 is 23427803.

It is a junction number, because it is equal to n+sod(n) for n = 30872395 and 30872404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30872437) by changing a digit.

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 as a sum of consecutive naturals, namely, 964748 + ... + 964779.

Almost surely, 2^30872432 is an apocalyptic number.

It is an amenable number.

30872432 is a deficient number, since it is larger than the sum of its proper divisors (28942936).

30872432 is a wasteful number, since it uses less digits than its factorization.

30872432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929535 (or 1929529 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 30872432 is about 5556.2966083534. The cubic root of 30872432 is about 313.7065699689.

The spelling of 30872432 in words is "thirty million, eight hundred seventy-two thousand, four hundred thirty-two".