402424339 has 2 divisors, whose sum is σ = 402424340. Its totient is φ = 402424338.

The previous prime is 402424331. The next prime is 402424349. The reversal of 402424339 is 933424204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402424339 - 2³ = 402424331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402424339.

It is not a weakly prime, because it can be changed into another prime (402424331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201212169 + 201212170.

It is an arithmetic number, because the mean of its divisors is an integer number (201212170).

Almost surely, 2^402424339 is an apocalyptic number.

402424339 is a deficient number, since it is larger than the sum of its proper divisors (1).

402424339 is an equidigital number, since it uses as much as digits as its factorization.

402424339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 402424339 is about 20060.5169175672. The cubic root of 402424339 is about 738.2918593812.

The spelling of 402424339 in words is "four hundred two million, four hundred twenty-four thousand, three hundred thirty-nine".