578463840 has 72 divisors (see below), whose sum is σ = 1974012768. Its totient is φ = 154256640.

The previous prime is 578463817. The next prime is 578463857. The reversal of 578463840 is 48364875.

578463840 is a `hidden beast` number, since 5 + 7 + 8 + 4 + 638 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199416 + ... + 202295.

It is an arithmetic number, because the mean of its divisors is an integer number (27416844).

Almost surely, 2^578463840 is an apocalyptic number.

It is an amenable number.

578463840 is an abundant number, since it is smaller than the sum of its proper divisors (1395548928).

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

578463840 is a wasteful number, since it uses less digits than its factorization.

578463840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401732 (or 401721 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 578463840 is about 24051.2752260665. The cubic root of 578463840 is about 833.2181828447.

The spelling of 578463840 in words is "five hundred seventy-eight million, four hundred sixty-three thousand, eight hundred forty".