22040305420 has 48 divisors (see below), whose sum is σ = 52905238848. Its totient is φ = 7555461120.

The previous prime is 22040305403. The next prime is 22040305423. The reversal of 22040305420 is 2450304022.

It is a junction number, because it is equal to n+sod(n) for n = 22040305391 and 22040305400.

It is not an unprimeable number, because it can be changed into a prime (22040305423) 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, 1531860 + ... + 1546180.

It is an arithmetic number, because the mean of its divisors is an integer number (1102192476).

Almost surely, 2^22040305420 is an apocalyptic number.

22040305420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22040305420 is an abundant number, since it is smaller than the sum of its proper divisors (30864933428).

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

22040305420 is a wasteful number, since it uses less digits than its factorization.

22040305420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25330 (or 25328 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 22040305420 its reverse (2450304022), we get a palindrome (24490609442).

The spelling of 22040305420 in words is "twenty-two billion, forty million, three hundred five thousand, four hundred twenty".