15949956 has 24 divisors (see below), whose sum is σ = 40600224. Its totient is φ = 4833280.

The previous prime is 15949933. The next prime is 15949963. The reversal of 15949956 is 65994951.

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, 60285 + ... + 60548.

It is an arithmetic number, because the mean of its divisors is an integer number (1691676).

Almost surely, 2^15949956 is an apocalyptic number.

It is an amenable number.

15949956 is an abundant number, since it is smaller than the sum of its proper divisors (24650268).

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

15949956 is a wasteful number, since it uses less digits than its factorization.

15949956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120851 (or 120849 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 15949956 is about 3993.7396009254. The cubic root of 15949956 is about 251.7212210627.

The spelling of 15949956 in words is "fifteen million, nine hundred forty-nine thousand, nine hundred fifty-six".