402441323233 has 4 divisors (see below), whose sum is σ = 402481979668. Its totient is φ = 402400666800.

The previous prime is 402441323197. The next prime is 402441323279. The reversal of 402441323233 is 332323144204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 251515289169 + 150926034064 = 501513^2 + 388492^2 .

It is a cyclic number.

It is not a de Polignac number, because 402441323233 - 2²⁵ = 402407768801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402441323195 and 402441323204.

It is not an unprimeable number, because it can be changed into a prime (402445323233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20313366 + ... + 20333167.

It is an arithmetic number, because the mean of its divisors is an integer number (100620494917).

Almost surely, 2^402441323233 is an apocalyptic number.

It is an amenable number.

402441323233 is a deficient number, since it is larger than the sum of its proper divisors (40656435).

402441323233 is an equidigital number, since it uses as much as digits as its factorization.

402441323233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40656434.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 402441323233 its reverse (332323144204), we get a palindrome (734764467437).

The spelling of 402441323233 in words is "four hundred two billion, four hundred forty-one million, three hundred twenty-three thousand, two hundred thirty-three".