390944630 has 8 divisors (see below), whose sum is σ = 703700352. Its totient is φ = 156377848.

The previous prime is 390944623. The next prime is 390944641. The reversal of 390944630 is 36449093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19547222 + ... + 19547241.

It is an arithmetic number, because the mean of its divisors is an integer number (87962544).

Almost surely, 2^390944630 is an apocalyptic number.

390944630 is a deficient number, since it is larger than the sum of its proper divisors (312755722).

390944630 is a wasteful number, since it uses less digits than its factorization.

390944630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39094470.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 390944630 is about 19772.3197930845. The cubic root of 390944630 is about 731.2037623381.

The spelling of 390944630 in words is "three hundred ninety million, nine hundred forty-four thousand, six hundred thirty".