390450419 has 2 divisors, whose sum is σ = 390450420. Its totient is φ = 390450418.

The previous prime is 390450409. The next prime is 390450427. The reversal of 390450419 is 914054093.

It is a strong prime.

It is an emirp because it is prime and its reverse (914054093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390450419 - 2⁸ = 390450163 is a prime.

It is a super-2 number, since 2×390450419² = 304903059394551122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390450409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195225209 + 195225210.

It is an arithmetic number, because the mean of its divisors is an integer number (195225210).

Almost surely, 2^390450419 is an apocalyptic number.

390450419 is a deficient number, since it is larger than the sum of its proper divisors (1).

390450419 is an equidigital number, since it uses as much as digits as its factorization.

390450419 is an odious number, because the sum of its binary digits is odd.

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

The square root of 390450419 is about 19759.8182936990. The cubic root of 390450419 is about 730.8955163647.

The spelling of 390450419 in words is "three hundred ninety million, four hundred fifty thousand, four hundred nineteen".