402324539 has 2 divisors, whose sum is σ = 402324540. Its totient is φ = 402324538.

The previous prime is 402324529. The next prime is 402324547. The reversal of 402324539 is 935423204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402324539 - 2⁴ = 402324523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402324529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201162269 + 201162270.

It is an arithmetic number, because the mean of its divisors is an integer number (201162270).

Almost surely, 2^402324539 is an apocalyptic number.

402324539 is a deficient number, since it is larger than the sum of its proper divisors (1).

402324539 is an equidigital number, since it uses as much as digits as its factorization.

402324539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 402324539 is about 20058.0292900374. The cubic root of 402324539 is about 738.2308229642.

The spelling of 402324539 in words is "four hundred two million, three hundred twenty-four thousand, five hundred thirty-nine".