42577928 has 32 divisors (see below), whose sum is σ = 84871800. Its totient is φ = 19955712.

The previous prime is 42577891. The next prime is 42577937. The reversal of 42577928 is 82977524.

It can be written as a sum of positive squares in 4 ways, for example, as 25421764 + 17156164 = 5042^2 + 4142^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45368 + ... + 46296.

Almost surely, 2^42577928 is an apocalyptic number.

It is an amenable number.

42577928 is a deficient number, since it is larger than the sum of its proper divisors (42293872).

42577928 is a wasteful number, since it uses less digits than its factorization.

42577928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1285 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 42577928 is about 6525.1764727094. The cubic root of 42577928 is about 349.1897666118.

The spelling of 42577928 in words is "forty-two million, five hundred seventy-seven thousand, nine hundred twenty-eight".