402144424322 has 8 divisors (see below), whose sum is σ = 603756672636. Its totient is φ = 200892200112.

The previous prime is 402144424321. The next prime is 402144424327. The reversal of 402144424322 is 223424441204.

It can be written as a sum of positive squares in 2 ways, for example, as 336157603681 + 65986820641 = 579791^2 + 256879^2 .

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

It is not an unprimeable number, because it can be changed into a prime (402144424321) 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, 90003233 + ... + 90007700.

Almost surely, 2^402144424322 is an apocalyptic number.

402144424322 is a deficient number, since it is larger than the sum of its proper divisors (201612248314).

402144424322 is a wasteful number, since it uses less digits than its factorization.

402144424322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180012052.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 402144424322 its reverse (223424441204), we get a palindrome (625568865526).

The spelling of 402144424322 in words is "four hundred two billion, one hundred forty-four million, four hundred twenty-four thousand, three hundred twenty-two".