42264931 has 2 divisors, whose sum is σ = 42264932. Its totient is φ = 42264930.

The previous prime is 42264881. The next prime is 42264983. The reversal of 42264931 is 13946224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42264931 is a prime.

It is a super-2 number, since 2×42264931² = 3572648784869522, which contains 22 as substring.

It is equal to p_2562754 and since 42264931 and 2562754 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 42264893 and 42264902.

It is not a weakly prime, because it can be changed into another prime (42264991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21132465 + 21132466.

It is an arithmetic number, because the mean of its divisors is an integer number (21132466).

Almost surely, 2^42264931 is an apocalyptic number.

42264931 is a deficient number, since it is larger than the sum of its proper divisors (1).

42264931 is an equidigital number, since it uses as much as digits as its factorization.

42264931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 42264931 is about 6501.1484370071. The cubic root of 42264931 is about 348.3320118283.

The spelling of 42264931 in words is "forty-two million, two hundred sixty-four thousand, nine hundred thirty-one".