390386966280 has 64 divisors (see below), whose sum is σ = 1222080946560. Its totient is φ = 99576964608.

The previous prime is 390386966237. The next prime is 390386966311. The reversal of 390386966280 is 82669683093.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 70719517 + ... + 70725036.

It is an arithmetic number, because the mean of its divisors is an integer number (19095014790).

Almost surely, 2^390386966280 is an apocalyptic number.

390386966280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

390386966280 is an abundant number, since it is smaller than the sum of its proper divisors (831693980280).

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

390386966280 is a wasteful number, since it uses less digits than its factorization.

390386966280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141444590 (or 141444586 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 60.

The spelling of 390386966280 in words is "three hundred ninety billion, three hundred eighty-six million, nine hundred sixty-six thousand, two hundred eighty".