80440374 has 64 divisors (see below), whose sum is σ = 191715840. Its totient is φ = 22014720.

The previous prime is 80440343. The next prime is 80440397. The reversal of 80440374 is 47304408.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256842 + ... + 257154.

It is an arithmetic number, because the mean of its divisors is an integer number (2995560).

Almost surely, 2^80440374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80440374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95857920).

80440374 is an abundant number, since it is smaller than the sum of its proper divisors (111275466).

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

80440374 is a wasteful number, since it uses less digits than its factorization.

80440374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 80440374 is about 8968.8557798640. The cubic root of 80440374 is about 431.6761225566.

The spelling of 80440374 in words is "eighty million, four hundred forty thousand, three hundred seventy-four".