389768240 has 20 divisors (see below), whose sum is σ = 906211344. Its totient is φ = 155907264.

The previous prime is 389768237. The next prime is 389768251. The reversal of 389768240 is 42867983.

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

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, 2435972 + ... + 2436131.

Almost surely, 2^389768240 is an apocalyptic number.

It is an amenable number.

389768240 is an abundant number, since it is smaller than the sum of its proper divisors (516443104).

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

389768240 is a wasteful number, since it uses less digits than its factorization.

389768240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872116 (or 4872110 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 389768240 is about 19742.5489742333. The cubic root of 389768240 is about 730.4696046406.

The spelling of 389768240 in words is "three hundred eighty-nine million, seven hundred sixty-eight thousand, two hundred forty".