13880688 has 20 divisors (see below), whose sum is σ = 35858568. Its totient is φ = 4626880.

The previous prime is 13880677. The next prime is 13880717. The reversal of 13880688 is 88608831.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 144543 + ... + 144638.

Almost surely, 2^13880688 is an apocalyptic number.

It is an amenable number.

13880688 is an abundant number, since it is smaller than the sum of its proper divisors (21977880).

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

13880688 is a wasteful number, since it uses less digits than its factorization.

13880688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289192 (or 289186 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 13880688 is about 3725.6795353331. The cubic root of 13880688 is about 240.3276081558.

The spelling of 13880688 in words is "thirteen million, eight hundred eighty thousand, six hundred eighty-eight".