390963241 has 2 divisors, whose sum is σ = 390963242. Its totient is φ = 390963240.

The previous prime is 390963233. The next prime is 390963259. The reversal of 390963241 is 142369093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366914025 + 24049216 = 19155^2 + 4904^2 .

It is a cyclic number.

It is not a de Polignac number, because 390963241 - 2³ = 390963233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390963241.

It is not a weakly prime, because it can be changed into another prime (390963211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195481620 + 195481621.

It is an arithmetic number, because the mean of its divisors is an integer number (195481621).

Almost surely, 2^390963241 is an apocalyptic number.

It is an amenable number.

390963241 is a deficient number, since it is larger than the sum of its proper divisors (1).

390963241 is an equidigital number, since it uses as much as digits as its factorization.

390963241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 390963241 is about 19772.7904201708. The cubic root of 390963241 is about 731.2153651894.

The spelling of 390963241 in words is "three hundred ninety million, nine hundred sixty-three thousand, two hundred forty-one".