390044478 has 8 divisors (see below), whose sum is σ = 780088968. Its totient is φ = 130014824.

The previous prime is 390044441. The next prime is 390044497. The reversal of 390044478 is 874440093.

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

390044478 is an admirable 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, 32503701 + ... + 32503712.

It is an arithmetic number, because the mean of its divisors is an integer number (97511121).

Almost surely, 2^390044478 is an apocalyptic number.

390044478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

390044478 is a wasteful number, since it uses less digits than its factorization.

390044478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65007418.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 390044478 is about 19749.5437415653. The cubic root of 390044478 is about 730.6421309363.

The spelling of 390044478 in words is "three hundred ninety million, forty-four thousand, four hundred seventy-eight".