15339990 has 16 divisors (see below), whose sum is σ = 36816048. Its totient is φ = 4090656.

The previous prime is 15339971. The next prime is 15340007. The reversal of 15339990 is 9993351.

15339990 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 7 ways as a sum of consecutive naturals, for example, 255637 + ... + 255696.

It is an arithmetic number, because the mean of its divisors is an integer number (2301003).

Almost surely, 2^15339990 is an apocalyptic number.

15339990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15339990 is an abundant number, since it is smaller than the sum of its proper divisors (21476058).

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

15339990 is a wasteful number, since it uses less digits than its factorization.

15339990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511343.

The product of its (nonzero) digits is 32805, while the sum is 39.

The square root of 15339990 is about 3916.6299289057. The cubic root of 15339990 is about 248.4706096057.

The spelling of 15339990 in words is "fifteen million, three hundred thirty-nine thousand, nine hundred ninety".