390260065 has 8 divisors (see below), whose sum is σ = 504336168. Its totient is φ = 288192000.

The previous prime is 390260063. The next prime is 390260111. The reversal of 390260065 is 560062093.

It can be written as a sum of positive squares in 4 ways, for example, as 85303696 + 304956369 = 9236^2 + 17463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 390260065 - 2¹ = 390260063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390260063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3001936 + ... + 3002065.

It is an arithmetic number, because the mean of its divisors is an integer number (63042021).

Almost surely, 2^390260065 is an apocalyptic number.

It is an amenable number.

390260065 is a deficient number, since it is larger than the sum of its proper divisors (114076103).

390260065 is a wasteful number, since it uses less digits than its factorization.

390260065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004019.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 390260065 is about 19755.0010124019. The cubic root of 390260065 is about 730.7767206577.

The spelling of 390260065 in words is "three hundred ninety million, two hundred sixty thousand, sixty-five".