402144443323 has 16 divisors (see below), whose sum is σ = 484090986240. Its totient is φ = 326345349600.

The previous prime is 402144443303. The next prime is 402144443339. The reversal of 402144443323 is 323344441204.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402144443323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402144443303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753388 + ... + 1171273.

It is an arithmetic number, because the mean of its divisors is an integer number (30255686640).

Almost surely, 2^402144443323 is an apocalyptic number.

402144443323 is a deficient number, since it is larger than the sum of its proper divisors (81946542917).

402144443323 is a wasteful number, since it uses less digits than its factorization.

402144443323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926258.

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

Adding to 402144443323 its reverse (323344441204), we get a palindrome (725488884527).

The spelling of 402144443323 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-three thousand, three hundred twenty-three".