390389194 has 16 divisors (see below), whose sum is σ = 641319840. Its totient is φ = 177125040.

The previous prime is 390389159. The next prime is 390389221. The reversal of 390389194 is 491983093.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125712 + ... + 128779.

It is an arithmetic number, because the mean of its divisors is an integer number (40082490).

Almost surely, 2^390389194 is an apocalyptic number.

390389194 is a deficient number, since it is larger than the sum of its proper divisors (250930646).

390389194 is a wasteful number, since it uses less digits than its factorization.

390389194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254565.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 390389194 is about 19758.2690031288. The cubic root of 390389194 is about 730.8573114139.

The spelling of 390389194 in words is "three hundred ninety million, three hundred eighty-nine thousand, one hundred ninety-four".