80981264 has 40 divisors (see below), whose sum is σ = 193112640. Its totient is φ = 32035968.

The previous prime is 80981239. The next prime is 80981267. The reversal of 80981264 is 46218908.

It is not an unprimeable number, because it can be changed into a prime (80981267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26354 + ... + 29265.

It is an arithmetic number, because the mean of its divisors is an integer number (4827816).

Almost surely, 2^80981264 is an apocalyptic number.

It is an amenable number.

80981264 is an abundant number, since it is smaller than the sum of its proper divisors (112131376).

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

80981264 is a wasteful number, since it uses less digits than its factorization.

80981264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55647 (or 55641 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 80981264 is about 8998.9590509125. The cubic root of 80981264 is about 432.6415080408.

The spelling of 80981264 in words is "eighty million, nine hundred eighty-one thousand, two hundred sixty-four".