398144333 has 2 divisors, whose sum is σ = 398144334. Its totient is φ = 398144332.

The previous prime is 398144311. The next prime is 398144339. The reversal of 398144333 is 333441893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266766889 + 131377444 = 16333^2 + 11462^2 .

It is a cyclic number.

It is not a de Polignac number, because 398144333 - 2⁸ = 398144077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398144339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199072166 + 199072167.

It is an arithmetic number, because the mean of its divisors is an integer number (199072167).

Almost surely, 2^398144333 is an apocalyptic number.

It is an amenable number.

398144333 is a deficient number, since it is larger than the sum of its proper divisors (1).

398144333 is an equidigital number, since it uses as much as digits as its factorization.

398144333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 398144333 is about 19953.5543951447. The cubic root of 398144333 is about 735.6651439538.

The spelling of 398144333 in words is "three hundred ninety-eight million, one hundred forty-four thousand, three hundred thirty-three".