398126419 has 2 divisors, whose sum is σ = 398126420. Its totient is φ = 398126418.

The previous prime is 398126363. The next prime is 398126429. The reversal of 398126419 is 914621893.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (914621893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398126419 - 2¹⁵ = 398093651 is a prime.

It is a super-2 number, since 2×398126419² = 317009291011527122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (398126429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199063209 + 199063210.

It is an arithmetic number, because the mean of its divisors is an integer number (199063210).

Almost surely, 2^398126419 is an apocalyptic number.

398126419 is a deficient number, since it is larger than the sum of its proper divisors (1).

398126419 is an equidigital number, since it uses as much as digits as its factorization.

398126419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 398126419 is about 19953.1054976412. The cubic root of 398126419 is about 735.6541103479.

The spelling of 398126419 in words is "three hundred ninety-eight million, one hundred twenty-six thousand, four hundred nineteen".