390985082944 has 63 divisors (see below), whose sum is σ = 793196899887. Its totient is φ = 191218072704.

The previous prime is 390985082941. The next prime is 390985082953. The reversal of 390985082944 is 449280589093.

The square root of 390985082944 is 625288.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390985082941) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 235107457 + ... + 235109119.

Almost surely, 2^390985082944 is an apocalyptic number.

390985082944 is the 625288-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390985082944

390985082944 is an abundant number, since it is smaller than the sum of its proper divisors (402211816943).

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

390985082944 is an frugal number, since it uses more digits than its factorization.

390985082944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 390985082944 in words is "three hundred ninety billion, nine hundred eighty-five million, eighty-two thousand, nine hundred forty-four".