15939952 has 40 divisors (see below), whose sum is σ = 36442112. Its totient is φ = 6609600.

The previous prime is 15939929. The next prime is 15939961. The reversal of 15939952 is 25993951.

It is a junction number, because it is equal to n+sod(n) for n = 15939899 and 15939908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177 + ... + 5767.

Almost surely, 2^15939952 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 15939952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18221056).

15939952 is an abundant number, since it is smaller than the sum of its proper divisors (20502160).

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

15939952 is a wasteful number, since it uses less digits than its factorization.

15939952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637 (or 4631 counting only the distinct ones).

The product of its digits is 109350, while the sum is 43.

The square root of 15939952 is about 3992.4869442492. The cubic root of 15939952 is about 251.6685825525.

The spelling of 15939952 in words is "fifteen million, nine hundred thirty-nine thousand, nine hundred fifty-two".