390340384 has 24 divisors (see below), whose sum is σ = 878266368. Its totient is φ = 167288640.

The previous prime is 390340381. The next prime is 390340399. The reversal of 390340384 is 483043093.

It is not an unprimeable number, because it can be changed into a prime (390340381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871072 + ... + 871519.

It is an arithmetic number, because the mean of its divisors is an integer number (36594432).

Almost surely, 2^390340384 is an apocalyptic number.

It is an amenable number.

390340384 is an abundant number, since it is smaller than the sum of its proper divisors (487925984).

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

390340384 is a wasteful number, since it uses less digits than its factorization.

390340384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742608 (or 1742600 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 390340384 is about 19757.0337854649. The cubic root of 390340384 is about 730.8268506731.

The spelling of 390340384 in words is "three hundred ninety million, three hundred forty thousand, three hundred eighty-four".