22440990937 has 2 divisors, whose sum is σ = 22440990938. Its totient is φ = 22440990936.

The previous prime is 22440990907. The next prime is 22440991007. The reversal of 22440990937 is 73909904422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18905975001 + 3535015936 = 137499^2 + 59456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22440990937 is a prime.

It is a super-4 number, since 4×22440990937⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (22440990907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11220495468 + 11220495469.

It is an arithmetic number, because the mean of its divisors is an integer number (11220495469).

Almost surely, 2^22440990937 is an apocalyptic number.

It is an amenable number.

22440990937 is a deficient number, since it is larger than the sum of its proper divisors (1).

22440990937 is an equidigital number, since it uses as much as digits as its factorization.

22440990937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 22440990937 in words is "twenty-two billion, four hundred forty million, nine hundred ninety thousand, nine hundred thirty-seven".