864080420 has 48 divisors (see below), whose sum is σ = 2195786880. Its totient is φ = 278828544.

The previous prime is 864080419. The next prime is 864080431. The reversal of 864080420 is 24080468.

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 15 ways as a sum of consecutive naturals, for example, 179150 + ... + 183909.

It is an arithmetic number, because the mean of its divisors is an integer number (45745560).

Almost surely, 2^864080420 is an apocalyptic number.

It is an amenable number.

864080420 is an abundant number, since it is smaller than the sum of its proper divisors (1331706460).

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

864080420 is a wasteful number, since it uses less digits than its factorization.

864080420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363092 (or 363090 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 864080420 is about 29395.2448535473. The cubic root of 864080420 is about 952.4701809106.

The spelling of 864080420 in words is "eight hundred sixty-four million, eighty thousand, four hundred twenty".