42628612 has 12 divisors (see below), whose sum is σ = 80338636. Its totient is φ = 19674720.

The previous prime is 42628583. The next prime is 42628657. The reversal of 42628612 is 21682624.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 40119556 = 1584^2 + 6334^2 .

It is a super-2 number, since 2×42628612² = 3634397122093088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409839 + ... + 409942.

Almost surely, 2^42628612 is an apocalyptic number.

It is an amenable number.

42628612 is a deficient number, since it is larger than the sum of its proper divisors (37710024).

42628612 is a wasteful number, since it uses less digits than its factorization.

42628612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819798 (or 819796 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 42628612 is about 6529.0590439971. The cubic root of 42628612 is about 349.3282680766.

The spelling of 42628612 in words is "forty-two million, six hundred twenty-eight thousand, six hundred twelve".