80400084 has 12 divisors (see below), whose sum is σ = 187600224. Its totient is φ = 26800024.

The previous prime is 80400059. The next prime is 80400091. The reversal of 80400084 is 48000408.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349992 + ... + 3350015.

It is an arithmetic number, because the mean of its divisors is an integer number (15633352).

Almost surely, 2^80400084 is an apocalyptic number.

It is an amenable number.

80400084 is an abundant number, since it is smaller than the sum of its proper divisors (107200140).

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

80400084 is a wasteful number, since it uses less digits than its factorization.

80400084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700014 (or 6700012 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 80400084 is about 8966.6093926300. The cubic root of 80400084 is about 431.6040396184.

The spelling of 80400084 in words is "eighty million, four hundred thousand, eighty-four".