390425219 has 2 divisors, whose sum is σ = 390425220. Its totient is φ = 390425218.

The previous prime is 390425197. The next prime is 390425239. The reversal of 390425219 is 912524093.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390425219 is a prime.

It is a super-2 number, since 2×390425219² = 304863703262395922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (390425239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195212609 + 195212610.

It is an arithmetic number, because the mean of its divisors is an integer number (195212610).

Almost surely, 2^390425219 is an apocalyptic number.

390425219 is a deficient number, since it is larger than the sum of its proper divisors (1).

390425219 is an equidigital number, since it uses as much as digits as its factorization.

390425219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 390425219 is about 19759.1806257243. The cubic root of 390425219 is about 730.8797918217.

The spelling of 390425219 in words is "three hundred ninety million, four hundred twenty-five thousand, two hundred nineteen".