384912560 has 20 divisors (see below), whose sum is σ = 894921888. Its totient is φ = 153964992.

The previous prime is 384912557. The next prime is 384912581. The reversal of 384912560 is 65219483.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405624 + ... + 2405783.

Almost surely, 2^384912560 is an apocalyptic number.

It is an amenable number.

384912560 is an abundant number, since it is smaller than the sum of its proper divisors (510009328).

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

384912560 is a wasteful number, since it uses less digits than its factorization.

384912560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811420 (or 4811414 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 384912560 is about 19619.1885662991. The cubic root of 384912560 is about 727.4235564825.

The spelling of 384912560 in words is "three hundred eighty-four million, nine hundred twelve thousand, five hundred sixty".