42264138 has 32 divisors (see below), whose sum is σ = 99218304. Its totient is φ = 11748672.

The previous prime is 42264127. The next prime is 42264143. The reversal of 42264138 is 83146224.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12045 + ... + 15152.

It is an arithmetic number, because the mean of its divisors is an integer number (3100572).

Almost surely, 2^42264138 is an apocalyptic number.

42264138 is an abundant number, since it is smaller than the sum of its proper divisors (56954166).

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

42264138 is a wasteful number, since it uses less digits than its factorization.

42264138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27246.

The product of its digits is 9216, while the sum is 30.

The square root of 42264138 is about 6501.0874474968. The cubic root of 42264138 is about 348.3298332765.

The spelling of 42264138 in words is "forty-two million, two hundred sixty-four thousand, one hundred thirty-eight".