13992530 has 32 divisors (see below), whose sum is σ = 27188784. Its totient is φ = 5165056.

The previous prime is 13992527. The next prime is 13992551. The reversal of 13992530 is 3529931.

It can be written as a sum of positive squares in 8 ways, for example, as 6446521 + 7546009 = 2539^2 + 2747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8234 + ... + 9786.

Almost surely, 2^13992530 is an apocalyptic number.

13992530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13992530 is a deficient number, since it is larger than the sum of its proper divisors (13196254).

13992530 is a wasteful number, since it uses less digits than its factorization.

13992530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 13992530 is about 3740.6590328443. The cubic root of 13992530 is about 240.9713526895.

The spelling of 13992530 in words is "thirteen million, nine hundred ninety-two thousand, five hundred thirty".