80340564 has 24 divisors (see below), whose sum is σ = 195612480. Its totient is φ = 25615744.

The previous prime is 80340553. The next prime is 80340577. The reversal of 80340564 is 46504308.

It is a congruent number.

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, 145269 + ... + 145820.

It is an arithmetic number, because the mean of its divisors is an integer number (8150520).

Almost surely, 2^80340564 is an apocalyptic number.

It is an amenable number.

80340564 is an abundant number, since it is smaller than the sum of its proper divisors (115271916).

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

80340564 is a wasteful number, since it uses less digits than its factorization.

80340564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291119 (or 291117 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 80340564 is about 8963.2897978365. The cubic root of 80340564 is about 431.4975081615.

The spelling of 80340564 in words is "eighty million, three hundred forty thousand, five hundred sixty-four".