22072393720 has 96 divisors (see below), whose sum is σ = 54659581920. Its totient is φ = 8016053760.

The previous prime is 22072393687. The next prime is 22072393789. The reversal of 22072393720 is 2739327022.

It is a self number, because there is not a number n which added to its sum of digits gives 22072393720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385597 + ... + 439123.

It is an arithmetic number, because the mean of its divisors is an integer number (569370645).

Almost surely, 2^22072393720 is an apocalyptic number.

22072393720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22072393720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27329790960).

22072393720 is an abundant number, since it is smaller than the sum of its proper divisors (32587188200).

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

22072393720 is a wasteful number, since it uses less digits than its factorization.

22072393720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53625 (or 53608 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 22072393720 in words is "twenty-two billion, seventy-two million, three hundred ninety-three thousand, seven hundred twenty".