80042831 has 12 divisors (see below), whose sum is σ = 88341792. Its totient is φ = 72468000.

The previous prime is 80042791. The next prime is 80042843. The reversal of 80042831 is 13824008.

It is not a de Polignac number, because 80042831 - 2²⁶ = 12933967 is a prime.

It is a super-2 number, since 2×80042831² = 12813709588989122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80042831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80042861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31571 + ... + 34011.

It is an arithmetic number, because the mean of its divisors is an integer number (7361816).

Almost surely, 2^80042831 is an apocalyptic number.

80042831 is a deficient number, since it is larger than the sum of its proper divisors (8298961).

80042831 is a wasteful number, since it uses less digits than its factorization.

80042831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 80042831 is about 8946.6659153005. The cubic root of 80042831 is about 430.9638214474.

Adding to 80042831 its reverse (13824008), we get a palindrome (93866839).

The spelling of 80042831 in words is "eighty million, forty-two thousand, eight hundred thirty-one".