15714972 has 180 divisors, whose sum is σ = 52080336. Its totient is φ = 4043520.

The previous prime is 15714961. The next prime is 15714989. The reversal of 15714972 is 27941751.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (17640) is a multiple of the sum of its prime factors (90).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 383272 + ... + 383312.

Almost surely, 2^15714972 is an apocalyptic number.

15714972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15714972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26040168).

15714972 is an abundant number, since it is smaller than the sum of its proper divisors (36365364).

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

15714972 is a wasteful number, since it uses less digits than its factorization.

15714972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 66 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 15714972 is about 3964.2113969868. The cubic root of 15714972 is about 250.4789325751.

It can be divided in two parts, 157 and 14972, that added together give a square (15129 = 123²).

The spelling of 15714972 in words is "fifteen million, seven hundred fourteen thousand, nine hundred seventy-two".