402143204432 has 10 divisors (see below), whose sum is σ = 779152458618. Its totient is φ = 201071602208.

The previous prime is 402143204417. The next prime is 402143204501. The reversal of 402143204432 is 234402341204.

It can be written as a sum of positive squares in only one way, i.e., 263398874176 + 138744330256 = 513224^2 + 372484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402143204395 and 402143204404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12566975123 + ... + 12566975154.

Almost surely, 2^402143204432 is an apocalyptic number.

It is an amenable number.

402143204432 is a deficient number, since it is larger than the sum of its proper divisors (377009254186).

402143204432 is a wasteful number, since it uses less digits than its factorization.

402143204432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25133950285 (or 25133950279 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402143204432 its reverse (234402341204), we get a palindrome (636545545636).

The spelling of 402143204432 in words is "four hundred two billion, one hundred forty-three million, two hundred four thousand, four hundred thirty-two".