80731400 has 48 divisors (see below), whose sum is σ = 189571200. Its totient is φ = 31970880.

The previous prime is 80731369. The next prime is 80731439. The reversal of 80731400 is 413708.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18641 + ... + 22559.

It is an arithmetic number, because the mean of its divisors is an integer number (3949400).

Almost surely, 2^80731400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80731400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94785600).

80731400 is an abundant number, since it is smaller than the sum of its proper divisors (108839800).

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

80731400 is a wasteful number, since it uses less digits than its factorization.

80731400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038 (or 4029 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 80731400 is about 8985.0653865178. The cubic root of 80731400 is about 432.1960843951.

The spelling of 80731400 in words is "eighty million, seven hundred thirty-one thousand, four hundred".