400431201411412 has 12 divisors (see below), whose sum is σ = 710353980586516. Its totient is φ = 197472921243840.

The previous prime is 400431201411391. The next prime is 400431201411413. The reversal of 400431201411412 is 214114102134004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136903899952836 + 263527301458576 = 11700594^2 + 16233524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400431201411413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685669865139 + ... + 685669865722.

Almost surely, 2^{400431201411412} is an apocalyptic number.

It is an amenable number.

400431201411412 is a deficient number, since it is larger than the sum of its proper divisors (309922779175104).

400431201411412 is a wasteful number, since it uses less digits than its factorization.

400431201411412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371339730938 (or 1371339730936 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 400431201411412 its reverse (214114102134004), we get a palindrome (614545303545416).

The spelling of 400431201411412 in words is "four hundred trillion, four hundred thirty-one billion, two hundred one million, four hundred eleven thousand, four hundred twelve".