390020001 has 16 divisors (see below), whose sum is σ = 629276544. Its totient is φ = 209758464.

The previous prime is 390019943. The next prime is 390020017. The reversal of 390020001 is 100020093.

It is not a de Polignac number, because 390020001 - 2⁶ = 390019937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390020051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545890 + ... + 546603.

It is an arithmetic number, because the mean of its divisors is an integer number (39329784).

Almost surely, 2^390020001 is an apocalyptic number.

It is an amenable number.

390020001 is a deficient number, since it is larger than the sum of its proper divisors (239256543).

390020001 is a wasteful number, since it uses less digits than its factorization.

390020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092520.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 390020001 is about 19748.9240466411. The cubic root of 390020001 is about 730.6268469515.

Adding to 390020001 its reverse (100020093), we get a palindrome (490040094).

The spelling of 390020001 in words is "three hundred ninety million, twenty thousand, one".