42512884 has 6 divisors (see below), whose sum is σ = 74397554. Its totient is φ = 21256440.

The previous prime is 42512879. The next prime is 42512891. The reversal of 42512884 is 48821524.

It can be written as a sum of positive squares in only one way, i.e., 38787984 + 3724900 = 6228^2 + 1930^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5314107 + ... + 5314114.

Almost surely, 2^42512884 is an apocalyptic number.

It is an amenable number.

42512884 is a deficient number, since it is larger than the sum of its proper divisors (31884670).

42512884 is a wasteful number, since it uses less digits than its factorization.

42512884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628225 (or 10628223 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 42512884 is about 6520.1904880149. The cubic root of 42512884 is about 349.0118632103.

The spelling of 42512884 in words is "forty-two million, five hundred twelve thousand, eight hundred eighty-four".