15427972 has 48 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 6336000.

The previous prime is 15427949. The next prime is 15428011. The reversal of 15427972 is 27972451.

15427972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102097 + ... + 102247.

It is an arithmetic number, because the mean of its divisors is an integer number (670320).

Almost surely, 2^15427972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15427972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16087680).

15427972 is an abundant number, since it is smaller than the sum of its proper divisors (16747388).

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

15427972 is a wasteful number, since it uses less digits than its factorization.

15427972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 15427972 is about 3927.8457199844. The cubic root of 15427972 is about 248.9447359384.

The spelling of 15427972 in words is "fifteen million, four hundred twenty-seven thousand, nine hundred seventy-two".