42267864 has 16 divisors (see below), whose sum is σ = 105669720. Its totient is φ = 14089280.

The previous prime is 42267857. The next prime is 42267881. The reversal of 42267864 is 46876224.

It is a congruent number.

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, 880557 + ... + 880604.

Almost surely, 2^42267864 is an apocalyptic number.

It is an amenable number.

42267864 is an abundant number, since it is smaller than the sum of its proper divisors (63401856).

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

42267864 is a wasteful number, since it uses less digits than its factorization.

42267864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761170 (or 1761166 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 42267864 is about 6501.3740086231. The cubic root of 42267864 is about 348.3400692109.

It can be divided in two parts, 4226 and 7864, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 42267864 in words is "forty-two million, two hundred sixty-seven thousand, eight hundred sixty-four".