402441400433 has 4 divisors (see below), whose sum is σ = 412257044388. Its totient is φ = 392625756480.

The previous prime is 402441400397. The next prime is 402441400447. The reversal of 402441400433 is 334004144204.

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 107861666929 + 294579733504 = 328423^2 + 542752^2 .

It is a cyclic number.

It is not a de Polignac number, because 402441400433 - 2²⁰ = 402440351857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402441400396 and 402441400405.

It is not an unprimeable number, because it can be changed into a prime (402441400033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4907821916 + ... + 4907821997.

It is an arithmetic number, because the mean of its divisors is an integer number (103064261097).

Almost surely, 2^402441400433 is an apocalyptic number.

It is an amenable number.

402441400433 is a deficient number, since it is larger than the sum of its proper divisors (9815643955).

402441400433 is an equidigital number, since it uses as much as digits as its factorization.

402441400433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815643954.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402441400433 its reverse (334004144204), we get a palindrome (736445544637).

The spelling of 402441400433 in words is "four hundred two billion, four hundred forty-one million, four hundred thousand, four hundred thirty-three".