402041329 has 2 divisors, whose sum is σ = 402041330. Its totient is φ = 402041328.

The previous prime is 402041303. The next prime is 402041333. The reversal of 402041329 is 923140204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401922304 + 119025 = 20048^2 + 345^2 .

It is a cyclic number.

It is not a de Polignac number, because 402041329 - 2¹⁵ = 402008561 is a prime.

It is not a weakly prime, because it can be changed into another prime (402048329) 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, 201020664 + 201020665.

It is an arithmetic number, because the mean of its divisors is an integer number (201020665).

Almost surely, 2^402041329 is an apocalyptic number.

It is an amenable number.

402041329 is a deficient number, since it is larger than the sum of its proper divisors (1).

402041329 is an equidigital number, since it uses as much as digits as its factorization.

402041329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 402041329 is about 20050.9682808587. The cubic root of 402041329 is about 738.0575603296.

The spelling of 402041329 in words is "four hundred two million, forty-one thousand, three hundred twenty-nine".