390609366 has 16 divisors (see below), whose sum is σ = 892821504. Its totient is φ = 111602664.

The previous prime is 390609361. The next prime is 390609379. The reversal of 390609366 is 663906093.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 9300223 = 390609366 / (3 + 9 + 0 + 6 + 0 + 9 + 3 + 6 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390609361) 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, 4650070 + ... + 4650153.

It is an arithmetic number, because the mean of its divisors is an integer number (55801344).

Almost surely, 2^390609366 is an apocalyptic number.

390609366 is an abundant number, since it is smaller than the sum of its proper divisors (502212138).

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

390609366 is a wasteful number, since it uses less digits than its factorization.

390609366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300235.

The product of its (nonzero) digits is 157464, while the sum is 42.

The square root of 390609366 is about 19763.8398597034. The cubic root of 390609366 is about 730.9946820832.

The spelling of 390609366 in words is "three hundred ninety million, six hundred nine thousand, three hundred sixty-six".