16626252 has 12 divisors (see below), whose sum is σ = 38794616. Its totient is φ = 5542080.

The previous prime is 16626241. The next prime is 16626257. The reversal of 16626252 is 25262661.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16626257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692749 + ... + 692772.

Almost surely, 2^16626252 is an apocalyptic number.

16626252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16626252 is an abundant number, since it is smaller than the sum of its proper divisors (22168364).

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

16626252 is a wasteful number, since it uses less digits than its factorization.

16626252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385528 (or 1385526 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 16626252 is about 4077.5301347752. The cubic root of 16626252 is about 255.2298427511.

The spelling of 16626252 in words is "sixteen million, six hundred twenty-six thousand, two hundred fifty-two".