402144444131 has 8 divisors (see below), whose sum is σ = 409417108128. Its totient is φ = 394893720000.

The previous prime is 402144444103. The next prime is 402144444151. The reversal of 402144444131 is 131444441204.

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

It is a cyclic number.

It is not a de Polignac number, because 402144444131 - 2¹⁴ = 402144427747 is a prime.

It is a super-2 number, since 2×402144444131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402144444101) 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 7 ways as a sum of consecutive naturals, for example, 5447975 + ... + 5521296.

It is an arithmetic number, because the mean of its divisors is an integer number (51177138516).

Almost surely, 2^402144444131 is an apocalyptic number.

402144444131 is a deficient number, since it is larger than the sum of its proper divisors (7272663997).

402144444131 is a wasteful number, since it uses less digits than its factorization.

402144444131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10969933.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 402144444131 its reverse (131444441204), we get a palindrome (533588885335).

The spelling of 402144444131 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-four thousand, one hundred thirty-one".