80276780 has 24 divisors (see below), whose sum is σ = 168749952. Its totient is φ = 32078592.

The previous prime is 80276773. The next prime is 80276803. The reversal of 80276780 is 8767208.

It is a super-2 number, since 2×80276780² = 12888722814336800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36389 + ... + 38531.

It is an arithmetic number, because the mean of its divisors is an integer number (7031248).

Almost surely, 2^80276780 is an apocalyptic number.

It is an amenable number.

80276780 is an abundant number, since it is smaller than the sum of its proper divisors (88473172).

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

80276780 is a wasteful number, since it uses less digits than its factorization.

80276780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 80276780 is about 8959.7310227484. The cubic root of 80276780 is about 431.3832863932.

The spelling of 80276780 in words is "eighty million, two hundred seventy-six thousand, seven hundred eighty".