402345211 has 2 divisors, whose sum is σ = 402345212. Its totient is φ = 402345210.

The previous prime is 402345199. The next prime is 402345221. The reversal of 402345211 is 112543204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402345211 - 2⁵ = 402345179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402345221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201172605 + 201172606.

It is an arithmetic number, because the mean of its divisors is an integer number (201172606).

Almost surely, 2^402345211 is an apocalyptic number.

402345211 is a deficient number, since it is larger than the sum of its proper divisors (1).

402345211 is an equidigital number, since it uses as much as digits as its factorization.

402345211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 402345211 is about 20058.5445882796. The cubic root of 402345211 is about 738.2434665265.

Adding to 402345211 its reverse (112543204), we get a palindrome (514888415).

The spelling of 402345211 in words is "four hundred two million, three hundred forty-five thousand, two hundred eleven".