402099323 has 2 divisors, whose sum is σ = 402099324. Its totient is φ = 402099322.

The previous prime is 402099289. The next prime is 402099343. The reversal of 402099323 is 323990204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402099323 - 2¹⁸ = 401837179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402099323.

It is not a weakly prime, because it can be changed into another prime (402099343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201049661 + 201049662.

It is an arithmetic number, because the mean of its divisors is an integer number (201049662).

Almost surely, 2^402099323 is an apocalyptic number.

402099323 is a deficient number, since it is larger than the sum of its proper divisors (1).

402099323 is an equidigital number, since it uses as much as digits as its factorization.

402099323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 402099323 is about 20052.4143932844. The cubic root of 402099323 is about 738.0930466085.

The spelling of 402099323 in words is "four hundred two million, ninety-nine thousand, three hundred twenty-three".