14891988 has 12 divisors (see below), whose sum is σ = 34748000. Its totient is φ = 4963992.

The previous prime is 14891977. The next prime is 14892041. The reversal of 14891988 is 88919841.

It is a tau number, because it is divible by the number of its divisors (12).

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, 620488 + ... + 620511.

Almost surely, 2^14891988 is an apocalyptic number.

It is an amenable number.

14891988 is an abundant number, since it is smaller than the sum of its proper divisors (19856012).

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

14891988 is a wasteful number, since it uses less digits than its factorization.

14891988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241006 (or 1241004 counting only the distinct ones).

The product of its digits is 165888, while the sum is 48.

The square root of 14891988 is about 3859.0138636704. The cubic root of 14891988 is about 246.0278242042.

The spelling of 14891988 in words is "fourteen million, eight hundred ninety-one thousand, nine hundred eighty-eight".