80240940 has 144 divisors (see below), whose sum is σ = 267478848. Its totient is φ = 19348992.

The previous prime is 80240929. The next prime is 80240959. The reversal of 80240940 is 4904208.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123697 + ... + 124343.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^80240940 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 80240940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133739424).

80240940 is an abundant number, since it is smaller than the sum of its proper divisors (187237908).

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

80240940 is a wasteful number, since it uses less digits than its factorization.

80240940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 80240940 is about 8957.7307394228. The cubic root of 80240940 is about 431.3190790412.

The spelling of 80240940 in words is "eighty million, two hundred forty thousand, nine hundred forty".