22038385820 has 36 divisors (see below), whose sum is σ = 50870428392. Its totient is φ = 8013957600.

The previous prime is 22038385807. The next prime is 22038385841. The reversal of 22038385820 is 2858383022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4550966 + ... + 4555805.

Almost surely, 2^22038385820 is an apocalyptic number.

22038385820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22038385820 is an abundant number, since it is smaller than the sum of its proper divisors (28832042572).

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

22038385820 is a wasteful number, since it uses less digits than its factorization.

22038385820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9106802 (or 9106789 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 22038385820 in words is "twenty-two billion, thirty-eight million, three hundred eighty-five thousand, eight hundred twenty".