15972342 has 16 divisors (see below), whose sum is σ = 32262192. Its totient is φ = 5271200.

The previous prime is 15972317. The next prime is 15972361. The reversal of 15972342 is 24327951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12573 + ... + 13784.

It is an arithmetic number, because the mean of its divisors is an integer number (2016387).

Almost surely, 2^15972342 is an apocalyptic number.

15972342 is an abundant number, since it is smaller than the sum of its proper divisors (16289850).

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

15972342 is a wasteful number, since it uses less digits than its factorization.

15972342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26463.

The product of its digits is 15120, while the sum is 33.

The square root of 15972342 is about 3996.5412546351. The cubic root of 15972342 is about 251.8389308341.

The spelling of 15972342 in words is "fifteen million, nine hundred seventy-two thousand, three hundred forty-two".