423401322220 has 24 divisors (see below), whose sum is σ = 927801159264. Its totient is φ = 161997027456.

The previous prime is 423401322137. The next prime is 423401322257. The reversal of 423401322220 is 22223104324.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460218369 + ... + 460219288.

It is an arithmetic number, because the mean of its divisors is an integer number (38658381636).

Almost surely, 2^423401322220 is an apocalyptic number.

It is an amenable number.

423401322220 is an abundant number, since it is smaller than the sum of its proper divisors (504399837044).

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

423401322220 is a wasteful number, since it uses less digits than its factorization.

423401322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920437689 (or 920437687 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 423401322220 its reverse (22223104324), we get a palindrome (445624426544).

The spelling of 423401322220 in words is "four hundred twenty-three billion, four hundred one million, three hundred twenty-two thousand, two hundred twenty".