42755922 has 24 divisors (see below), whose sum is σ = 101059920. Its totient is φ = 12956280.

The previous prime is 42755897. The next prime is 42755953. The reversal of 42755922 is 22955724.

It is a happy number.

It is a hoax number, since the sum of its digits (36) 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 11 ways as a sum of consecutive naturals, for example, 107772 + ... + 108167.

It is an arithmetic number, because the mean of its divisors is an integer number (4210830).

Almost surely, 2^42755922 is an apocalyptic number.

42755922 is an abundant number, since it is smaller than the sum of its proper divisors (58303998).

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

42755922 is a wasteful number, since it uses less digits than its factorization.

42755922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215958 (or 215955 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 42755922 is about 6538.8012662873. The cubic root of 42755922 is about 349.6756777959.

The spelling of 42755922 in words is "forty-two million, seven hundred fifty-five thousand, nine hundred twenty-two".