390204466 has 4 divisors (see below), whose sum is σ = 585306702. Its totient is φ = 195102232.

The previous prime is 390204461. The next prime is 390204469. The reversal of 390204466 is 664402093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 280395025 + 109809441 = 16745^2 + 10479^2 .

It is not an unprimeable number, because it can be changed into a prime (390204461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97551115 + ... + 97551118.

Almost surely, 2^390204466 is an apocalyptic number.

390204466 is a deficient number, since it is larger than the sum of its proper divisors (195102236).

390204466 is a wasteful number, since it uses less digits than its factorization.

390204466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195102235.

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

The square root of 390204466 is about 19753.5937489865. The cubic root of 390204466 is about 730.7420152666.

The spelling of 390204466 in words is "three hundred ninety million, two hundred four thousand, four hundred sixty-six".