400122031421432 has 64 divisors (see below), whose sum is σ = 776882561495040. Its totient is φ = 193044751286400.

The previous prime is 400122031421401. The next prime is 400122031421443. The reversal of 400122031421432 is 234124130221004.

It is a junction number, because it is equal to n+sod(n) for n = 400122031421395 and 400122031421404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57469457 + ... + 64054527.

It is an arithmetic number, because the mean of its divisors is an integer number (12138790023360).

Almost surely, 2^{400122031421432} is an apocalyptic number.

It is an amenable number.

400122031421432 is a deficient number, since it is larger than the sum of its proper divisors (376760530073608).

400122031421432 is a wasteful number, since it uses less digits than its factorization.

400122031421432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586812 (or 6586808 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 400122031421432 its reverse (234124130221004), we get a palindrome (634246161642436).

The spelling of 400122031421432 in words is "four hundred trillion, one hundred twenty-two billion, thirty-one million, four hundred twenty-one thousand, four hundred thirty-two".