42189252 has 48 divisors (see below), whose sum is σ = 112866432. Its totient is φ = 12015360.

The previous prime is 42189211. The next prime is 42189263. The reversal of 42189252 is 25298124.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 34768 + ... + 35960.

It is an arithmetic number, because the mean of its divisors is an integer number (2351384).

Almost surely, 2^42189252 is an apocalyptic number.

42189252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42189252 is an abundant number, since it is smaller than the sum of its proper divisors (70677180).

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

42189252 is a wasteful number, since it uses less digits than its factorization.

42189252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1626 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 42189252 is about 6495.3253960060. The cubic root of 42189252 is about 348.1239814549.

The spelling of 42189252 in words is "forty-two million, one hundred eighty-nine thousand, two hundred fifty-two".