400311412432 has 20 divisors (see below), whose sum is σ = 802348306020. Its totient is φ = 193253785088.

The previous prime is 400311412429. The next prime is 400311412453. The reversal of 400311412432 is 234214113004.

It can be written as a sum of positive squares in 2 ways, for example, as 160403454016 + 239907958416 = 400504^2 + 489804^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400311412397 and 400311412406.

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, 431369593 + ... + 431370520.

It is an arithmetic number, because the mean of its divisors is an integer number (40117415301).

Almost surely, 2^400311412432 is an apocalyptic number.

It is an amenable number.

400311412432 is an abundant number, since it is smaller than the sum of its proper divisors (402036893588).

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

400311412432 is a wasteful number, since it uses less digits than its factorization.

400311412432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862740150 (or 862740144 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 400311412432 its reverse (234214113004), we get a palindrome (634525525436).

The spelling of 400311412432 in words is "four hundred billion, three hundred eleven million, four hundred twelve thousand, four hundred thirty-two".