22323344440 has 64 divisors (see below), whose sum is σ = 50645878560. Its totient is φ = 8855101440.

The previous prime is 22323344411. The next prime is 22323344441. The reversal of 22323344440 is 4444332322.

It is a happy number.

It is a super-3 number, since 3×22323344440³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22323344441) 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, 8607784 + ... + 8610376.

Almost surely, 2^22323344440 is an apocalyptic number.

22323344440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22323344440 is an abundant number, since it is smaller than the sum of its proper divisors (28322534120).

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

22323344440 is a wasteful number, since it uses less digits than its factorization.

22323344440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312 (or 4308 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 22323344440 its reverse (4444332322), we get a palindrome (26767676762).

The spelling of 22323344440 in words is "twenty-two billion, three hundred twenty-three million, three hundred forty-four thousand, four hundred forty".