80400518 has 8 divisors (see below), whose sum is σ = 131564520. Its totient is φ = 36545680.

The previous prime is 80400493. The next prime is 80400527. The reversal of 80400518 is 81500408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 1827263 + ... + 1827306.

It is an arithmetic number, because the mean of its divisors is an integer number (16445565).

Almost surely, 2^80400518 is an apocalyptic number.

80400518 is a deficient number, since it is larger than the sum of its proper divisors (51164002).

80400518 is a wasteful number, since it uses less digits than its factorization.

80400518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654582.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 80400518 is about 8966.6335934954. The cubic root of 80400518 is about 431.6048162171.

The spelling of 80400518 in words is "eighty million, four hundred thousand, five hundred eighteen".