16213252 has 48 divisors (see below), whose sum is σ = 33247872. Its totient is φ = 6842880.

The previous prime is 16213247. The next prime is 16213273. The reversal of 16213252 is 25231261.

16213252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 37228 + ... + 37660.

It is an arithmetic number, because the mean of its divisors is an integer number (692664).

Almost surely, 2^16213252 is an apocalyptic number.

It is an amenable number.

16213252 is an abundant number, since it is smaller than the sum of its proper divisors (17034620).

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

16213252 is a wasteful number, since it uses less digits than its factorization.

16213252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 506 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 16213252 is about 4026.5682659058. The cubic root of 16213252 is about 253.0987756605.

Subtracting 16213252 from its reverse (25231261), we obtain a square (9018009 = 3003²).

The spelling of 16213252 in words is "sixteen million, two hundred thirteen thousand, two hundred fifty-two".