42272920 has 16 divisors (see below), whose sum is σ = 95114160. Its totient is φ = 16909152.

The previous prime is 42272917. The next prime is 42272921. The reversal of 42272920 is 2927224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528372 + ... + 528451.

It is an arithmetic number, because the mean of its divisors is an integer number (5944635).

Almost surely, 2^42272920 is an apocalyptic number.

42272920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42272920 is an abundant number, since it is smaller than the sum of its proper divisors (52841240).

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

42272920 is a wasteful number, since it uses less digits than its factorization.

42272920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056834 (or 1056830 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 42272920 is about 6501.7628378771. The cubic root of 42272920 is about 348.3539579118.

The spelling of 42272920 in words is "forty-two million, two hundred seventy-two thousand, nine hundred twenty".