22404240020 has 48 divisors (see below), whose sum is σ = 48584987136. Its totient is φ = 8669328000.

The previous prime is 22404240017. The next prime is 22404240031. The reversal of 22404240020 is 2004240422.

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

It is a junction number, because it is equal to n+sod(n) for n = 22404239974 and 22404240001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2215175 + ... + 2225265.

It is an arithmetic number, because the mean of its divisors is an integer number (1012187232).

Almost surely, 2^22404240020 is an apocalyptic number.

22404240020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22404240020 is an abundant number, since it is smaller than the sum of its proper divisors (26180747116).

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

22404240020 is a wasteful number, since it uses less digits than its factorization.

22404240020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13712 (or 13710 counting only the distinct ones).

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

Adding to 22404240020 its reverse (2004240422), we get a palindrome (24408480442).

The spelling of 22404240020 in words is "twenty-two billion, four hundred four million, two hundred forty thousand, twenty".