390195813 has 16 divisors (see below), whose sum is σ = 595077120. Its totient is φ = 222784176.

The previous prime is 390195797. The next prime is 390195829. The reversal of 390195813 is 318591093.

It is an interprime number because it is at equal distance from previous prime (390195797) and next prime (390195829).

It is not a de Polignac number, because 390195813 - 2⁴ = 390195797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390195863) 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, 20656 + ... + 34742.

It is an arithmetic number, because the mean of its divisors is an integer number (37192320).

Almost surely, 2^390195813 is an apocalyptic number.

It is an amenable number.

390195813 is a deficient number, since it is larger than the sum of its proper divisors (204881307).

390195813 is a wasteful number, since it uses less digits than its factorization.

390195813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15416.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 390195813 is about 19753.3747243351. The cubic root of 390195813 is about 730.7366136904.

The spelling of 390195813 in words is "three hundred ninety million, one hundred ninety-five thousand, eight hundred thirteen".