390189466 has 16 divisors (see below), whose sum is σ = 591123456. Its totient is φ = 193154976.

The previous prime is 390189413. The next prime is 390189469. The reversal of 390189466 is 664981093.

It is not an unprimeable number, because it can be changed into a prime (390189469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147790 + ... + 150406.

It is an arithmetic number, because the mean of its divisors is an integer number (36945216).

Almost surely, 2^390189466 is an apocalyptic number.

390189466 is a deficient number, since it is larger than the sum of its proper divisors (200933990).

390189466 is a wasteful number, since it uses less digits than its factorization.

390189466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 390189466 is about 19753.2140675891. The cubic root of 390189466 is about 730.7326515683.

It can be divided in two parts, 39018 and 9466, that added together give a palindrome (48484).

The spelling of 390189466 in words is "three hundred ninety million, one hundred eighty-nine thousand, four hundred sixty-six".