22204624840 has 16 divisors (see below), whose sum is σ = 49960405980. Its totient is φ = 8881849920.

The previous prime is 22204624831. The next prime is 22204624861. The reversal of 22204624840 is 4842640222.

It can be written as a sum of positive squares in 2 ways, for example, as 18349953444 + 3854671396 = 135462^2 + 62086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22204624796 and 22204624805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277557771 + ... + 277557850.

Almost surely, 2^22204624840 is an apocalyptic number.

22204624840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22204624840 is an abundant number, since it is smaller than the sum of its proper divisors (27755781140).

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

22204624840 is a wasteful number, since it uses less digits than its factorization.

22204624840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555115632 (or 555115628 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The spelling of 22204624840 in words is "twenty-two billion, two hundred four million, six hundred twenty-four thousand, eight hundred forty".