390113279 has 8 divisors (see below), whose sum is σ = 393098160. Its totient is φ = 387135936.

The previous prime is 390113261. The next prime is 390113287. The reversal of 390113279 is 972311093.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390113279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390113209) 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, 141587 + ... + 144315.

It is an arithmetic number, because the mean of its divisors is an integer number (49137270).

Almost surely, 2^390113279 is an apocalyptic number.

390113279 is a deficient number, since it is larger than the sum of its proper divisors (2984881).

390113279 is a wasteful number, since it uses less digits than its factorization.

390113279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 390113279 is about 19751.2855024679. The cubic root of 390113279 is about 730.6850883909.

The spelling of 390113279 in words is "three hundred ninety million, one hundred thirteen thousand, two hundred seventy-nine".