42064672 has 24 divisors (see below), whose sum is σ = 89186076. Its totient is φ = 19414272.

The previous prime is 42064661. The next prime is 42064679. The reversal of 42064672 is 27646024.

It can be written as a sum of positive squares in 2 ways, for example, as 39388176 + 2676496 = 6276^2 + 1636^2 .

It is not an unprimeable number, because it can be changed into a prime (42064679) 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, 50143 + ... + 50974.

Almost surely, 2^42064672 is an apocalyptic number.

It is an amenable number.

42064672 is an abundant number, since it is smaller than the sum of its proper divisors (47121404).

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

42064672 is a wasteful number, since it uses less digits than its factorization.

42064672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101140 (or 101132 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 42064672 is about 6485.7283322692. The cubic root of 42064672 is about 347.7809869568.

The spelling of 42064672 in words is "forty-two million, sixty-four thousand, six hundred seventy-two".