860020380 has 36 divisors (see below), whose sum is σ = 2608729032. Its totient is φ = 229338720.

The previous prime is 860020331. The next prime is 860020391. The reversal of 860020380 is 83020068.

860020380 is a `hidden beast` number, since 8 + 600 + 20 + 38 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 2388766 + ... + 2389125.

Almost surely, 2^860020380 is an apocalyptic number.

It is an amenable number.

860020380 is an abundant number, since it is smaller than the sum of its proper divisors (1748708652).

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

860020380 is a wasteful number, since it uses less digits than its factorization.

860020380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777906 (or 4777901 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 860020380 is about 29326.1040712878. The cubic root of 860020380 is about 950.9760531608.

The spelling of 860020380 in words is "eight hundred sixty million, twenty thousand, three hundred eighty".