390445694 has 8 divisors (see below), whose sum is σ = 586301760. Its totient is φ = 195011776.

The previous prime is 390445691. The next prime is 390445703. The reversal of 390445694 is 496544093.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390445691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103214 + ... + 106929.

It is an arithmetic number, because the mean of its divisors is an integer number (73287720).

Almost surely, 2^390445694 is an apocalyptic number.

390445694 is a deficient number, since it is larger than the sum of its proper divisors (195856066).

390445694 is a wasteful number, since it uses less digits than its factorization.

390445694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211074.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 390445694 is about 19759.6987325212. The cubic root of 390445694 is about 730.8925680645.

The spelling of 390445694 in words is "three hundred ninety million, four hundred forty-five thousand, six hundred ninety-four".