400044242422 has 64 divisors (see below), whose sum is σ = 682075634688. Its totient is φ = 174376800000.

The previous prime is 400044242371. The next prime is 400044242441. The reversal of 400044242422 is 224242440004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44439922 + ... + 44448922.

It is an arithmetic number, because the mean of its divisors is an integer number (10657431792).

Almost surely, 2^400044242422 is an apocalyptic number.

400044242422 is a deficient number, since it is larger than the sum of its proper divisors (282031392266).

400044242422 is a wasteful number, since it uses less digits than its factorization.

400044242422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9925.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 400044242422 its reverse (224242440004), we get a palindrome (624286682426).

The spelling of 400044242422 in words is "four hundred billion, forty-four million, two hundred forty-two thousand, four hundred twenty-two".