15442372 has 12 divisors (see below), whose sum is σ = 29480976. Its totient is φ = 7019240.

The previous prime is 15442337. The next prime is 15442381. The reversal of 15442372 is 27324451.

15442372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15442372.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175438 + ... + 175525.

It is an arithmetic number, because the mean of its divisors is an integer number (2456748).

Almost surely, 2^15442372 is an apocalyptic number.

It is an amenable number.

15442372 is a deficient number, since it is larger than the sum of its proper divisors (14038604).

15442372 is a wasteful number, since it uses less digits than its factorization.

15442372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350978 (or 350976 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 15442372 is about 3929.6783583393. The cubic root of 15442372 is about 249.0221643362.

It can be divided in two parts, 1544 and 2372, that added together give a triangular number (3916 = T₈₈).

The spelling of 15442372 in words is "fifteen million, four hundred forty-two thousand, three hundred seventy-two".