42264531 has 16 divisors (see below), whose sum is σ = 65910400. Its totient is φ = 26693064.

The previous prime is 42264529. The next prime is 42264539. The reversal of 42264531 is 13546224.

It is not a de Polignac number, because 42264531 - 2¹ = 42264529 is a prime.

It is a super-2 number, since 2×42264531² = 3572581161299922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42264495 and 42264504.

It is not an unprimeable number, because it can be changed into a prime (42264539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40681 + ... + 41706.

It is an arithmetic number, because the mean of its divisors is an integer number (4119400).

Almost surely, 2^42264531 is an apocalyptic number.

42264531 is a deficient number, since it is larger than the sum of its proper divisors (23645869).

42264531 is a wasteful number, since it uses less digits than its factorization.

42264531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82415 (or 82409 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 42264531 is about 6501.1176731390. The cubic root of 42264531 is about 348.3309129405.

The spelling of 42264531 in words is "forty-two million, two hundred sixty-four thousand, five hundred thirty-one".