42464531 has 4 divisors (see below), whose sum is σ = 42876912. Its totient is φ = 42052152.

The previous prime is 42464519. The next prime is 42464537. The reversal of 42464531 is 13546424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42464531 - 2⁶ = 42464467 is a prime.

It is a super-2 number, since 2×42464531² = 3606472786099922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42464494 and 42464503.

It is not an unprimeable number, because it can be changed into a prime (42464537) 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, 206036 + ... + 206241.

It is an arithmetic number, because the mean of its divisors is an integer number (10719228).

Almost surely, 2^42464531 is an apocalyptic number.

42464531 is a deficient number, since it is larger than the sum of its proper divisors (412381).

42464531 is a wasteful number, since it uses less digits than its factorization.

42464531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412380.

The product of its digits is 11520, while the sum is 29.

The square root of 42464531 is about 6516.4814892701. The cubic root of 42464531 is about 348.8794941409.

The spelling of 42464531 in words is "forty-two million, four hundred sixty-four thousand, five hundred thirty-one".