390643236682790 has 288 divisors, whose sum is σ = 891181336496256. Its totient is φ = 122870253542400.

The previous prime is 390643236682781. The next prime is 390643236682801. The reversal of 390643236682790 is 97286632346093.

It is a self number, because there is not a number n which added to its sum of digits gives 390643236682790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 68521876940 + ... + 68521882640.

It is an arithmetic number, because the mean of its divisors is an integer number (3094379640612).

Almost surely, 2^{390643236682790} is an apocalyptic number.

390643236682790 is an abundant number, since it is smaller than the sum of its proper divisors (500538099813466).

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

390643236682790 is a wasteful number, since it uses less digits than its factorization.

390643236682790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704 (or 10684 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 68.

The spelling of 390643236682790 in words is "three hundred ninety trillion, six hundred forty-three billion, two hundred thirty-six million, six hundred eighty-two thousand, seven hundred ninety".