22246137740 has 48 divisors (see below), whose sum is σ = 48831697152. Its totient is φ = 8496962496.

The previous prime is 22246137733. The next prime is 22246137743. The reversal of 22246137740 is 4773164222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22246137694 and 22246137703.

It is not an unprimeable number, because it can be changed into a prime (22246137743) 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, 228827 + ... + 311213.

It is an arithmetic number, because the mean of its divisors is an integer number (1017327024).

Almost surely, 2^22246137740 is an apocalyptic number.

22246137740 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 22246137740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24415848576).

22246137740 is an abundant number, since it is smaller than the sum of its proper divisors (26585559412).

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

22246137740 is a wasteful number, since it uses less digits than its factorization.

22246137740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83006 (or 83004 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 22246137740 in words is "twenty-two billion, two hundred forty-six million, one hundred thirty-seven thousand, seven hundred forty".