22430321340 has 144 divisors (see below), whose sum is σ = 74758223232. Its totient is φ = 5007671424.

The previous prime is 22430321321. The next prime is 22430321357. The reversal of 22430321340 is 4312303422.

It is a self number, because there is not a number n which added to its sum of digits gives 22430321340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37707 + ... + 215133.

It is an arithmetic number, because the mean of its divisors is an integer number (519154328).

Almost surely, 2^22430321340 is an apocalyptic number.

22430321340 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 22430321340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37379111616).

22430321340 is an abundant number, since it is smaller than the sum of its proper divisors (52327901892).

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

22430321340 is a wasteful number, since it uses less digits than its factorization.

22430321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177496 (or 177487 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 22430321340 its reverse (4312303422), we get a palindrome (26742624762).

The spelling of 22430321340 in words is "twenty-two billion, four hundred thirty million, three hundred twenty-one thousand, three hundred forty".