80440064 has 18 divisors (see below), whose sum is σ = 160566420. Its totient is φ = 40219904.

The previous prime is 80440051. The next prime is 80440079. The reversal of 80440064 is 46004408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156854 + ... + 157365.

Almost surely, 2^80440064 is an apocalyptic number.

It is an amenable number.

80440064 is a deficient number, since it is larger than the sum of its proper divisors (80126356).

80440064 is an equidigital number, since it uses as much as digits as its factorization.

80440064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314235 (or 314221 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 80440064 is about 8968.8384978212. The cubic root of 80440064 is about 431.6755680267.

The spelling of 80440064 in words is "eighty million, four hundred forty thousand, sixty-four".