390023320093 has 4 divisors (see below), whose sum is σ = 425479985568. Its totient is φ = 354566654620.

The previous prime is 390023320079. The next prime is 390023320121.

390023320093 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390023320093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390023320013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17728332721 + ... + 17728332742.

It is an arithmetic number, because the mean of its divisors is an integer number (106369996392).

Almost surely, 2^390023320093 is an apocalyptic number.

It is an amenable number.

390023320093 is a deficient number, since it is larger than the sum of its proper divisors (35456665475).

390023320093 is a wasteful number, since it uses less digits than its factorization.

390023320093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35456665474.

The product of its (nonzero) digits is 26244, while the sum is 34.

The spelling of 390023320093 in words is "three hundred ninety billion, twenty-three million, three hundred twenty thousand, ninety-three".