42775872 has 28 divisors (see below), whose sum is σ = 113178336. Its totient is φ = 14258560.

The previous prime is 42775861. The next prime is 42775879. The reversal of 42775872 is 27857724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775879) 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, 111204 + ... + 111587.

Almost surely, 2^42775872 is an apocalyptic number.

It is an amenable number.

42775872 is an abundant number, since it is smaller than the sum of its proper divisors (70402464).

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

42775872 is a wasteful number, since it uses less digits than its factorization.

42775872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222806 (or 222796 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The square root of 42775872 is about 6540.3265973497. The cubic root of 42775872 is about 349.7300557995.

The spelling of 42775872 in words is "forty-two million, seven hundred seventy-five thousand, eight hundred seventy-two".