13690388 has 12 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 6795672.

The previous prime is 13690373. The next prime is 13690403. The reversal of 13690388 is 88309631.

It is an interprime number because it is at equal distance from previous prime (13690373) and next prime (13690403).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11756 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^13690388 is an apocalyptic number.

It is an amenable number.

13690388 is a deficient number, since it is larger than the sum of its proper divisors (10441132).

13690388 is a wasteful number, since it uses less digits than its factorization.

13690388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24766 (or 24764 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 13690388 is about 3700.0524320609. The cubic root of 13690388 is about 239.2242778384.

The spelling of 13690388 in words is "thirteen million, six hundred ninety thousand, three hundred eighty-eight".