80572840 has 32 divisors (see below), whose sum is σ = 181738080. Its totient is φ = 32149312.

The previous prime is 80572837. The next prime is 80572853. The reversal of 80572840 is 4827508.

It is a junction number, because it is equal to n+sod(n) for n = 80572796 and 80572805.

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 7 ways as a sum of consecutive naturals, for example, 15447 + ... + 19993.

It is an arithmetic number, because the mean of its divisors is an integer number (5679315).

Almost surely, 2^80572840 is an apocalyptic number.

It is an amenable number.

80572840 is an abundant number, since it is smaller than the sum of its proper divisors (101165240).

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

80572840 is a wasteful number, since it uses less digits than its factorization.

80572840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001 (or 4997 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 80572840 is about 8976.2375191391. The cubic root of 80572840 is about 431.9129482803.

The spelling of 80572840 in words is "eighty million, five hundred seventy-two thousand, eight hundred forty".