402144241143 has 16 divisors (see below), whose sum is σ = 545617399040. Its totient is φ = 263423390976.

The previous prime is 402144241141. The next prime is 402144241181. The reversal of 402144241143 is 341142441204.

It is a happy number.

It is not a de Polignac number, because 402144241143 - 2¹ = 402144241141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402144241143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144241141) 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, 4930555 + ... + 5011452.

It is an arithmetic number, because the mean of its divisors is an integer number (34101087440).

Almost surely, 2^402144241143 is an apocalyptic number.

402144241143 is a deficient number, since it is larger than the sum of its proper divisors (143473157897).

402144241143 is a wasteful number, since it uses less digits than its factorization.

402144241143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942246.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 402144241143 its reverse (341142441204), we get a palindrome (743286682347).

The spelling of 402144241143 in words is "four hundred two billion, one hundred forty-four million, two hundred forty-one thousand, one hundred forty-three".