22404143220 has 48 divisors (see below), whose sum is σ = 62789283648. Its totient is φ = 5968944640.

The previous prime is 22404143147. The next prime is 22404143221. The reversal of 22404143220 is 2234140422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404143221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105669 + ... + 236588.

It is an arithmetic number, because the mean of its divisors is an integer number (1308110076).

Almost surely, 2^22404143220 is an apocalyptic number.

22404143220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22404143220 is an abundant number, since it is smaller than the sum of its proper divisors (40385140428).

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

22404143220 is a wasteful number, since it uses less digits than its factorization.

22404143220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343360 (or 343358 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22404143220 its reverse (2234140422), we get a palindrome (24638283642).

The spelling of 22404143220 in words is "twenty-two billion, four hundred four million, one hundred forty-three thousand, two hundred twenty".