402243134444 has 12 divisors (see below), whose sum is σ = 703942801968. Its totient is φ = 201116619600.

The previous prime is 402243134441. The next prime is 402243134507. The reversal of 402243134444 is 444431342204.

It is not an unprimeable number, because it can be changed into a prime (402243134441) 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, 1050872 + ... + 1381599.

It is an arithmetic number, because the mean of its divisors is an integer number (58661900164).

Almost surely, 2^402243134444 is an apocalyptic number.

It is an amenable number.

402243134444 is a deficient number, since it is larger than the sum of its proper divisors (301699667524).

402243134444 is a wasteful number, since it uses less digits than its factorization.

402243134444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473816 (or 2473814 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 402243134444 its reverse (444431342204), we get a palindrome (846674476648).

The spelling of 402243134444 in words is "four hundred two billion, two hundred forty-three million, one hundred thirty-four thousand, four hundred forty-four".