16642252 has 48 divisors (see below), whose sum is σ = 35441280. Its totient is φ = 6739200.

The previous prime is 16642243. The next prime is 16642253. The reversal of 16642252 is 25224661.

It is a self number, because there is not a number n which added to its sum of digits gives 16642252.

It is not an unprimeable number, because it can be changed into a prime (16642253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13627 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (738360).

Almost surely, 2^16642252 is an apocalyptic number.

It is an amenable number.

16642252 is an abundant number, since it is smaller than the sum of its proper divisors (18799028).

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

16642252 is a wasteful number, since it uses less digits than its factorization.

16642252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1220 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 16642252 is about 4079.4916349957. The cubic root of 16642252 is about 255.3116885821.

It can be divided in two parts, 1664 and 2252, that added together give a triangular number (3916 = T₈₈).

The spelling of 16642252 in words is "sixteen million, six hundred forty-two thousand, two hundred fifty-two".