390944837078 has 8 divisors (see below), whose sum is σ = 586503172872. Its totient is φ = 195443779456.

The previous prime is 390944837069. The next prime is 390944837161. The reversal of 390944837078 is 870738449093.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 390944837078.

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, 14302475 + ... + 14329782.

It is an arithmetic number, because the mean of its divisors is an integer number (73312896609).

Almost surely, 2^390944837078 is an apocalyptic number.

390944837078 is a deficient number, since it is larger than the sum of its proper divisors (195558335794).

390944837078 is a wasteful number, since it uses less digits than its factorization.

390944837078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28639086.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 390944837078 in words is "three hundred ninety billion, nine hundred forty-four million, eight hundred thirty-seven thousand, seventy-eight".