42064136 has 16 divisors (see below), whose sum is σ = 80164140. Its totient is φ = 20687040.

The previous prime is 42064129. The next prime is 42064213. The reversal of 42064136 is 63146024.

It can be written as a sum of positive squares in 2 ways, for example, as 26112100 + 15952036 = 5110^2 + 3994^2 .

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, 42611 + ... + 43586.

Almost surely, 2^42064136 is an apocalyptic number.

It is an amenable number.

42064136 is a deficient number, since it is larger than the sum of its proper divisors (38100004).

42064136 is a wasteful number, since it uses less digits than its factorization.

42064136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86264 (or 86260 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 42064136 is about 6485.6870106412. The cubic root of 42064136 is about 347.7795097758.

The spelling of 42064136 in words is "forty-two million, sixty-four thousand, one hundred thirty-six".