390023001 has 27 divisors (see below), whose sum is σ = 586044511. Its totient is φ = 249943344.

The previous prime is 390022987. The next prime is 390023063. The reversal of 390023001 is 100320093.

The square root of 390023001 is 19749.

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

It can be written as a sum of positive squares in only one way, i.e., 204518601 + 185504400 = 14301^2 + 13620^2 .

It is not a de Polignac number, because 390023001 - 2⁹ = 390022489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390023701) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1718050 + ... + 1718276.

Almost surely, 2^390023001 is an apocalyptic number.

390023001 is the 19749-th square number.

390023001 is the 9875-th centered octagonal number.

It is an amenable number.

390023001 is a deficient number, since it is larger than the sum of its proper divisors (196021510).

390023001 is an equidigital number, since it uses as much as digits as its factorization.

390023001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The cubic root of 390023001 is about 730.6287202528.

Adding to 390023001 its reverse (100320093), we get a palindrome (490343094).

The spelling of 390023001 in words is "three hundred ninety million, twenty-three thousand, one".