390803268984 has 64 divisors (see below), whose sum is σ = 1009791498240. Its totient is φ = 125907204480.

The previous prime is 390803268941. The next prime is 390803269001. The reversal of 390803268984 is 489862308093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263437 + ... + 922499.

It is an arithmetic number, because the mean of its divisors is an integer number (15777992160).

Almost surely, 2^390803268984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390803268984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504895749120).

390803268984 is an abundant number, since it is smaller than the sum of its proper divisors (618988229256).

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

390803268984 is a wasteful number, since it uses less digits than its factorization.

390803268984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659900 (or 659896 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 390803268984 in words is "three hundred ninety billion, eight hundred three million, two hundred sixty-eight thousand, nine hundred eighty-four".