15339890 has 16 divisors (see below), whose sum is σ = 27815832. Its totient is φ = 6090624.

The previous prime is 15339889. The next prime is 15339913. The reversal of 15339890 is 9893351.

It can be written as a sum of positive squares in 4 ways, for example, as 10975969 + 4363921 = 3313^2 + 2089^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4229 + ... + 6968.

Almost surely, 2^15339890 is an apocalyptic number.

15339890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15339890 is a deficient number, since it is larger than the sum of its proper divisors (12475942).

15339890 is a wasteful number, since it uses less digits than its factorization.

15339890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11341.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 15339890 is about 3916.6171628077. The cubic root of 15339890 is about 248.4700696854.

The spelling of 15339890 in words is "fifteen million, three hundred thirty-nine thousand, eight hundred ninety".