22004404040 has 32 divisors (see below), whose sum is σ = 50136624000. Its totient is φ = 8690345664.

The previous prime is 22004404003. The next prime is 22004404057. The reversal of 22004404040 is 4040440022.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3478550 + ... + 3484869.

It is an arithmetic number, because the mean of its divisors is an integer number (1566769500).

Almost surely, 2^22004404040 is an apocalyptic number.

22004404040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22004404040 is an abundant number, since it is smaller than the sum of its proper divisors (28132219960).

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

22004404040 is a wasteful number, since it uses less digits than its factorization.

22004404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963509 (or 6963505 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22004404040 its reverse (4040440022), we get a palindrome (26044844062).

The spelling of 22004404040 in words is "twenty-two billion, four million, four hundred four thousand, forty".