402312233 has 2 divisors, whose sum is σ = 402312234. Its totient is φ = 402312232.

The previous prime is 402312221. The next prime is 402312247. The reversal of 402312233 is 332213204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292649449 + 109662784 = 17107^2 + 10472^2 .

It is a cyclic number.

It is not a de Polignac number, because 402312233 - 2⁴ = 402312217 is a prime.

It is not a weakly prime, because it can be changed into another prime (402312283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201156116 + 201156117.

It is an arithmetic number, because the mean of its divisors is an integer number (201156117).

Almost surely, 2^402312233 is an apocalyptic number.

It is an amenable number.

402312233 is a deficient number, since it is larger than the sum of its proper divisors (1).

402312233 is an equidigital number, since it uses as much as digits as its factorization.

402312233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402312233 is about 20057.7225277448. The cubic root of 402312233 is about 738.2232960713.

Adding to 402312233 its reverse (332213204), we get a palindrome (734525437).

The spelling of 402312233 in words is "four hundred two million, three hundred twelve thousand, two hundred thirty-three".