80438631 has 16 divisors (see below), whose sum is σ = 132002304. Its totient is φ = 42429024.

The previous prime is 80438551. The next prime is 80438689. The reversal of 80438631 is 13683408.

It is not a de Polignac number, because 80438631 - 2⁷ = 80438503 is a prime.

It is a super-2 number, since 2×80438631² = 12940746714308322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80438592 and 80438601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80438531) 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, 147051 + ... + 147596.

It is an arithmetic number, because the mean of its divisors is an integer number (8250144).

Almost surely, 2^80438631 is an apocalyptic number.

80438631 is a deficient number, since it is larger than the sum of its proper divisors (51563673).

80438631 is a wasteful number, since it uses less digits than its factorization.

80438631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294670.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 80438631 is about 8968.7586097520. The cubic root of 80438631 is about 431.6730046491.

The spelling of 80438631 in words is "eighty million, four hundred thirty-eight thousand, six hundred thirty-one".