80405472 has 72 divisors (see below), whose sum is σ = 245538216. Its totient is φ = 22971648.

The previous prime is 80405459. The next prime is 80405491. The reversal of 80405472 is 27450408.

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 11 ways as a sum of consecutive naturals, for example, 3843 + ... + 13250.

It is an arithmetic number, because the mean of its divisors is an integer number (3410253).

Almost surely, 2^80405472 is an apocalyptic number.

It is an amenable number.

80405472 is an abundant number, since it is smaller than the sum of its proper divisors (165132744).

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

80405472 is a wasteful number, since it uses less digits than its factorization.

80405472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17120 (or 17105 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 80405472 is about 8966.9098356123. The cubic root of 80405472 is about 431.6136806971.

The spelling of 80405472 in words is "eighty million, four hundred five thousand, four hundred seventy-two".