16623252 has 48 divisors (see below), whose sum is σ = 45371200. Its totient is φ = 5248800.

The previous prime is 16623247. The next prime is 16623281. The reversal of 16623252 is 25232661.

16623252 is a `hidden beast` number, since 16 + 623 + 25 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1999 + ... + 6102.

Almost surely, 2^16623252 is an apocalyptic number.

16623252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16623252 is an abundant number, since it is smaller than the sum of its proper divisors (28747948).

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

16623252 is a wasteful number, since it uses less digits than its factorization.

16623252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133 (or 8125 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 16623252 is about 4077.1622484272. The cubic root of 16623252 is about 255.2144908128.

The spelling of 16623252 in words is "sixteen million, six hundred twenty-three thousand, two hundred fifty-two".