390866967996 has 384 divisors, whose sum is σ = 1078444523520. Its totient is φ = 109357682688.

The previous prime is 390866967913. The next prime is 390866968007. The reversal of 390866967996 is 699769668093.

It is a super-5 number, since 5×390866967996⁵ (a number of 59 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 694257211 + ... + 694257773.

It is an arithmetic number, because the mean of its divisors is an integer number (2808449280).

Almost surely, 2^390866967996 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 390866967996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539222261760).

390866967996 is an abundant number, since it is smaller than the sum of its proper divisors (687577555524).

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

390866967996 is a wasteful number, since it uses less digits than its factorization.

390866967996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 1428513408, while the sum is 78.

The spelling of 390866967996 in words is "three hundred ninety billion, eight hundred sixty-six million, nine hundred sixty-seven thousand, nine hundred ninety-six".