402104399 has 2 divisors, whose sum is σ = 402104400. Its totient is φ = 402104398.

The previous prime is 402104371. The next prime is 402104413. The reversal of 402104399 is 993401204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402104399 - 2²⁴ = 385327183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402107399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201052199 + 201052200.

It is an arithmetic number, because the mean of its divisors is an integer number (201052200).

Almost surely, 2^402104399 is an apocalyptic number.

402104399 is a deficient number, since it is larger than the sum of its proper divisors (1).

402104399 is an equidigital number, since it uses as much as digits as its factorization.

402104399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 402104399 is about 20052.5409611849. The cubic root of 402104399 is about 738.0961524286.

The spelling of 402104399 in words is "four hundred two million, one hundred four thousand, three hundred ninety-nine".