402144412432 has 20 divisors (see below), whose sum is σ = 890462627776. Its totient is φ = 172347605280.

The previous prime is 402144412427. The next prime is 402144412459. The reversal of 402144412432 is 234214441204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402144412394 and 402144412403.

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 in 3 ways as a sum of consecutive naturals, for example, 1795287444 + ... + 1795287667.

Almost surely, 2^402144412432 is an apocalyptic number.

It is an amenable number.

402144412432 is an abundant number, since it is smaller than the sum of its proper divisors (488318215344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402144412432 is a wasteful number, since it uses less digits than its factorization.

402144412432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590575126 (or 3590575120 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 402144412432 its reverse (234214441204), we get a palindrome (636358853636).

The spelling of 402144412432 in words is "four hundred two billion, one hundred forty-four million, four hundred twelve thousand, four hundred thirty-two".