390259841 has 2 divisors, whose sum is σ = 390259842. Its totient is φ = 390259840.

The previous prime is 390259799. The next prime is 390259861. The reversal of 390259841 is 148952093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360240400 + 30019441 = 18980^2 + 5479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390259841 is a prime.

It is a super-3 number, since 3×390259841³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390259861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195129920 + 195129921.

It is an arithmetic number, because the mean of its divisors is an integer number (195129921).

Almost surely, 2^390259841 is an apocalyptic number.

It is an amenable number.

390259841 is a deficient number, since it is larger than the sum of its proper divisors (1).

390259841 is an equidigital number, since it uses as much as digits as its factorization.

390259841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 390259841 is about 19754.9953429506. The cubic root of 390259841 is about 730.7765808415.

The spelling of 390259841 in words is "three hundred ninety million, two hundred fifty-nine thousand, eight hundred forty-one".