402144400412 has 12 divisors (see below), whose sum is σ = 703799819520. Its totient is φ = 201058737696.

The previous prime is 402144400387. The next prime is 402144400429. The reversal of 402144400412 is 214004441204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3298268 + ... + 3418019.

It is an arithmetic number, because the mean of its divisors is an integer number (58649984960).

Almost surely, 2^402144400412 is an apocalyptic number.

It is an amenable number.

402144400412 is a deficient number, since it is larger than the sum of its proper divisors (301655419108).

402144400412 is a wasteful number, since it uses less digits than its factorization.

402144400412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731260 (or 6731258 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 402144400412 its reverse (214004441204), we get a palindrome (616148841616).

The spelling of 402144400412 in words is "four hundred two billion, one hundred forty-four million, four hundred thousand, four hundred twelve".