42880631 has 2 divisors, whose sum is σ = 42880632. Its totient is φ = 42880630.

The previous prime is 42880627. The next prime is 42880667. The reversal of 42880631 is 13608824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42880631 - 2² = 42880627 is a prime.

It is a super-2 number, since 2×42880631² = 3677497029916322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42880031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21440315 + 21440316.

It is an arithmetic number, because the mean of its divisors is an integer number (21440316).

Almost surely, 2^42880631 is an apocalyptic number.

42880631 is a deficient number, since it is larger than the sum of its proper divisors (1).

42880631 is an equidigital number, since it uses as much as digits as its factorization.

42880631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 42880631 is about 6548.3303978953. The cubic root of 42880631 is about 350.0153217782.

The spelling of 42880631 in words is "forty-two million, eight hundred eighty thousand, six hundred thirty-one".