80456904 has 192 divisors, whose sum is σ = 256089600. Its totient is φ = 22579200.

The previous prime is 80456897. The next prime is 80456923. The reversal of 80456904 is 40965408.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 711952 + ... + 712064.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^80456904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80456904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128044800).

80456904 is an abundant number, since it is smaller than the sum of its proper divisors (175632696).

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

80456904 is a wasteful number, since it uses less digits than its factorization.

80456904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 80456904 is about 8969.7772547595. Note that the first 3 decimals coincide. The cubic root of 80456904 is about 431.7056894570.

The spelling of 80456904 in words is "eighty million, four hundred fifty-six thousand, nine hundred four".