22734345820 has 48 divisors (see below), whose sum is σ = 51014335680. Its totient is φ = 8480277504.

The previous prime is 22734345793. The next prime is 22734345827. The reversal of 22734345820 is 2854343722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22734345827) 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, 269664 + ... + 343783.

It is an arithmetic number, because the mean of its divisors is an integer number (1062798660).

Almost surely, 2^22734345820 is an apocalyptic number.

22734345820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22734345820 is an abundant number, since it is smaller than the sum of its proper divisors (28279989860).

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

22734345820 is a wasteful number, since it uses less digits than its factorization.

22734345820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613582 (or 613580 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 22734345820 in words is "twenty-two billion, seven hundred thirty-four million, three hundred forty-five thousand, eight hundred twenty".