390334379 has 4 divisors (see below), whose sum is σ = 393142680. Its totient is φ = 387526080.

The previous prime is 390334369. The next prime is 390334387. The reversal of 390334379 is 973433093.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973433093 = 3797 ⋅256369.

It is a cyclic number.

It is not a de Polignac number, because 390334379 - 2¹⁶ = 390268843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390334369) 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, 1403942 + ... + 1404219.

It is an arithmetic number, because the mean of its divisors is an integer number (98285670).

Almost surely, 2^390334379 is an apocalyptic number.

390334379 is a deficient number, since it is larger than the sum of its proper divisors (2808301).

390334379 is a wasteful number, since it uses less digits than its factorization.

390334379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808300.

The product of its (nonzero) digits is 183708, while the sum is 41.

The square root of 390334379 is about 19756.8818136871. The cubic root of 390334379 is about 730.8231029716.

The spelling of 390334379 in words is "three hundred ninety million, three hundred thirty-four thousand, three hundred seventy-nine".