80981432 has 16 divisors (see below), whose sum is σ = 173531760. Its totient is φ = 34706304.

The previous prime is 80981431. The next prime is 80981443. The reversal of 80981432 is 23418908.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80981392 and 80981401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80981431) 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, 722993 + ... + 723104.

It is an arithmetic number, because the mean of its divisors is an integer number (10845735).

Almost surely, 2^80981432 is an apocalyptic number.

It is an amenable number.

80981432 is an abundant number, since it is smaller than the sum of its proper divisors (92550328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80981432 is a wasteful number, since it uses less digits than its factorization.

80981432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446110 (or 1446106 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80981432 is about 8998.9683853206. The cubic root of 80981432 is about 432.6418072199.

The spelling of 80981432 in words is "eighty million, nine hundred eighty-one thousand, four hundred thirty-two".