80140680 has 48 divisors (see below), whose sum is σ = 260458380. Its totient is φ = 21370752.

The previous prime is 80140679. The next prime is 80140699. The reversal of 80140680 is 8604108.

It can be written as a sum of positive squares in 2 ways, for example, as 76003524 + 4137156 = 8718^2 + 2034^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110947 + ... + 111666.

Almost surely, 2^80140680 is an apocalyptic number.

It is an amenable number.

80140680 is an abundant number, since it is smaller than the sum of its proper divisors (180317700).

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

80140680 is a wasteful number, since it uses less digits than its factorization.

80140680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222630 (or 222623 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 80140680 is about 8952.1327067912. The cubic root of 80140680 is about 431.1393616620.

Adding to 80140680 its reverse (8604108), we get a palindrome (88744788).

The spelling of 80140680 in words is "eighty million, one hundred forty thousand, six hundred eighty".