80472732 has 48 divisors (see below), whose sum is σ = 191520000. Its totient is φ = 26294400.

The previous prime is 80472731. The next prime is 80472739. The reversal of 80472732 is 23727408.

It is a junction number, because it is equal to n+sod(n) for n = 80472693 and 80472702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80472731) 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, 161019 + ... + 161517.

It is an arithmetic number, because the mean of its divisors is an integer number (3990000).

Almost surely, 2^80472732 is an apocalyptic number.

It is an amenable number.

80472732 is an abundant number, since it is smaller than the sum of its proper divisors (111047268).

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

80472732 is a wasteful number, since it uses less digits than its factorization.

80472732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 80472732 is about 8970.6595075279. The cubic root of 80472732 is about 431.7339969081.

It can be divided in two parts, 804 and 72732, that added together give a triangular number (73536 = T₃₈₃).

The spelling of 80472732 in words is "eighty million, four hundred seventy-two thousand, seven hundred thirty-two".