80940256 has 48 divisors (see below), whose sum is σ = 165957120. Its totient is φ = 38816640.

The previous prime is 80940253. The next prime is 80940259. The reversal of 80940256 is 65204908.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80940253) and next prime (80940259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80940253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137595 + ... + 138181.

It is an arithmetic number, because the mean of its divisors is an integer number (3457440).

Almost surely, 2^80940256 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 80940256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82978560).

80940256 is an abundant number, since it is smaller than the sum of its proper divisors (85016864).

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

80940256 is a wasteful number, since it uses less digits than its factorization.

80940256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 80940256 is about 8996.6802766354. The cubic root of 80940256 is about 432.5684674481.

The spelling of 80940256 in words is "eighty million, nine hundred forty thousand, two hundred fifty-six".