390479974093 has 64 divisors (see below), whose sum is σ = 446752288512. Its totient is φ = 338261114880.

The previous prime is 390479974033. The next prime is 390479974103.

390479974093 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 390479974093 - 2⁹ = 390479973581 is a prime.

It is a super-2 number, since 2×390479974093² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390479974033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1125302346 + ... + 1125302692.

It is an arithmetic number, because the mean of its divisors is an integer number (6980504508).

Almost surely, 2^390479974093 is an apocalyptic number.

It is an amenable number.

390479974093 is a deficient number, since it is larger than the sum of its proper divisors (56272314419).

390479974093 is a wasteful number, since it uses less digits than its factorization.

390479974093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 46294416, while the sum is 64.

It can be divided in two parts, 3904 and 79974093, that added together give a palindrome (79977997).

The spelling of 390479974093 in words is "three hundred ninety billion, four hundred seventy-nine million, nine hundred seventy-four thousand, ninety-three".