402144343244 has 12 divisors (see below), whose sum is σ = 804288686544. Its totient is φ = 172347575664.

The previous prime is 402144343243. The next prime is 402144343273. The reversal of 402144343244 is 442343441204.

402144343244 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (402144343243) 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, 7181148959 + ... + 7181149014.

It is an arithmetic number, because the mean of its divisors is an integer number (67024057212).

Almost surely, 2^402144343244 is an apocalyptic number.

It is an amenable number.

402144343244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402144343244 is a wasteful number, since it uses less digits than its factorization.

402144343244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14362297984 (or 14362297982 counting only the distinct ones).

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

Adding to 402144343244 its reverse (442343441204), we get a palindrome (844487784448).

The spelling of 402144343244 in words is "four hundred two billion, one hundred forty-four million, three hundred forty-three thousand, two hundred forty-four".