390116841 has 4 divisors (see below), whose sum is σ = 520155792. Its totient is φ = 260077892.

The previous prime is 390116809. The next prime is 390116861. The reversal of 390116841 is 148611093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 390116841 - 2⁵ = 390116809 is a prime.

It is a super-2 number, since 2×390116841² = 304382299263638562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (390116801) 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, 65019471 + ... + 65019476.

It is an arithmetic number, because the mean of its divisors is an integer number (130038948).

Almost surely, 2^390116841 is an apocalyptic number.

It is an amenable number.

390116841 is a deficient number, since it is larger than the sum of its proper divisors (130038951).

390116841 is a wasteful number, since it uses less digits than its factorization.

390116841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130038950.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 390116841 is about 19751.3756736082. The cubic root of 390116841 is about 730.6873122683.

The spelling of 390116841 in words is "three hundred ninety million, one hundred sixteen thousand, eight hundred forty-one".