16269988 has 12 divisors (see below), whose sum is σ = 32540032. Its totient is φ = 6972840.

The previous prime is 16269961. The next prime is 16269991. The reversal of 16269988 is 88996261.

It is a happy number.

16269988 is an admirable 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, 290508 + ... + 290563.

Almost surely, 2^16269988 is an apocalyptic number.

It is an amenable number.

16269988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16269988 is a wasteful number, since it uses less digits than its factorization.

16269988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581082 (or 581080 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 16269988 is about 4033.6073185178. The cubic root of 16269988 is about 253.3936598407.

The spelling of 16269988 in words is "sixteen million, two hundred sixty-nine thousand, nine hundred eighty-eight".