390134523680 has 96 divisors (see below), whose sum is σ = 1007775457920. Its totient is φ = 141543659520.

The previous prime is 390134523671. The next prime is 390134523733. The reversal of 390134523680 is 86325431093.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520172 + ... + 1025108.

It is an arithmetic number, because the mean of its divisors is an integer number (10497661020).

Almost surely, 2^390134523680 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 390134523680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503887728960).

390134523680 is an abundant number, since it is smaller than the sum of its proper divisors (617640934240).

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

390134523680 is a wasteful number, since it uses less digits than its factorization.

390134523680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505402 (or 505394 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 390134523680 in words is "three hundred ninety billion, one hundred thirty-four million, five hundred twenty-three thousand, six hundred eighty".