80440260 has 72 divisors (see below), whose sum is σ = 239312640. Its totient is φ = 20184576.

The previous prime is 80440259. The next prime is 80440279. The reversal of 80440260 is 6204408.

80440260 is nontrivially palindromic in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 80440260.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15021 + ... + 19659.

Almost surely, 2^80440260 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 80440260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119656320).

80440260 is an abundant number, since it is smaller than the sum of its proper divisors (158872380).

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

80440260 is a wasteful number, since it uses less digits than its factorization.

80440260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685 (or 4666 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 80440260 is about 8968.8494245360. The cubic root of 80440260 is about 431.6759186328.

Adding to 80440260 its reverse (6204408), we get a palindrome (86644668).

The spelling of 80440260 in words is "eighty million, four hundred forty thousand, two hundred sixty".