30472372 has 24 divisors (see below), whose sum is σ = 61137216. Its totient is φ = 13018368.

The previous prime is 30472369. The next prime is 30472397. The reversal of 30472372 is 27327403.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30472372.

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, 8343 + ... + 11425.

It is an arithmetic number, because the mean of its divisors is an integer number (2547384).

Almost surely, 2^30472372 is an apocalyptic number.

It is an amenable number.

30472372 is an abundant number, since it is smaller than the sum of its proper divisors (30664844).

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

30472372 is a wasteful number, since it uses less digits than its factorization.

30472372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447 (or 3445 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 30472372 is about 5520.1786202984. The cubic root of 30472372 is about 312.3456201732.

Adding to 30472372 its reverse (27327403), we get a palindrome (57799775).

The spelling of 30472372 in words is "thirty million, four hundred seventy-two thousand, three hundred seventy-two".