400022220324 has 24 divisors (see below), whose sum is σ = 933599923200. Its totient is φ = 133310062624.

The previous prime is 400022220317. The next prime is 400022220391. The reversal of 400022220324 is 423022220004.

It is a self number, because there is not a number n which added to its sum of digits gives 400022220324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3780324 + ... + 3884699.

It is an arithmetic number, because the mean of its divisors is an integer number (38899996800).

Almost surely, 2^400022220324 is an apocalyptic number.

It is an amenable number.

400022220324 is an abundant number, since it is smaller than the sum of its proper divisors (533577702876).

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

400022220324 is a wasteful number, since it uses less digits than its factorization.

400022220324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7669379 (or 7669377 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 400022220324 its reverse (423022220004), we get a palindrome (823044440328).

The spelling of 400022220324 in words is "four hundred billion, twenty-two million, two hundred twenty thousand, three hundred twenty-four".