400022442444 has 24 divisors (see below), whose sum is σ = 933396000768. Its totient is φ = 133339342480.

The previous prime is 400022442437. The next prime is 400022442493. The reversal of 400022442444 is 444244220004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834429 + ... + 2040875.

It is an arithmetic number, because the mean of its divisors is an integer number (38891500032).

Almost surely, 2^400022442444 is an apocalyptic number.

It is an amenable number.

400022442444 is an abundant number, since it is smaller than the sum of its proper divisors (533373558324).

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

400022442444 is a wasteful number, since it uses less digits than its factorization.

400022442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367925 (or 367923 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 400022442444 its reverse (444244220004), we get a palindrome (844266662448).

The spelling of 400022442444 in words is "four hundred billion, twenty-two million, four hundred forty-two thousand, four hundred forty-four".