16641252 has 36 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 5530032.

The previous prime is 16641239. The next prime is 16641263. The reversal of 16641252 is 25214661.

16641252 is a `hidden beast` number, since 16 + 641 + 2 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17649 + ... + 18567.

It is an arithmetic number, because the mean of its divisors is an integer number (1172080).

Almost surely, 2^16641252 is an apocalyptic number.

16641252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16641252 is an abundant number, since it is smaller than the sum of its proper divisors (25553628).

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

16641252 is a wasteful number, since it uses less digits than its factorization.

16641252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1427 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 16641252 is about 4079.3690688635. The cubic root of 16641252 is about 255.3065747549.

It can be divided in two parts, 166412 and 52, that added together give a square (166464 = 408²).

The spelling of 16641252 in words is "sixteen million, six hundred forty-one thousand, two hundred fifty-two".