402441333442 has 8 divisors (see below), whose sum is σ = 603681068556. Its totient is φ = 201214310592.

The previous prime is 402441333433. The next prime is 402441333443. The reversal of 402441333442 is 244333144204.

It can be written as a sum of positive squares in 2 ways, for example, as 332860917481 + 69580415961 = 576941^2 + 263781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 402441333398 and 402441333407.

It is not an unprimeable number, because it can be changed into a prime (402441333443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3098523 + ... + 3225790.

Almost surely, 2^402441333442 is an apocalyptic number.

402441333442 is a deficient number, since it is larger than the sum of its proper divisors (201239735114).

402441333442 is a wasteful number, since it uses less digits than its factorization.

402441333442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356132.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 402441333442 its reverse (244333144204), we get a palindrome (646774477646).

The spelling of 402441333442 in words is "four hundred two billion, four hundred forty-one million, three hundred thirty-three thousand, four hundred forty-two".