22403144240 has 40 divisors (see below), whose sum is σ = 52093749120. Its totient is φ = 8960150016.

The previous prime is 22403144213. The next prime is 22403144249. The reversal of 22403144240 is 4244130422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (22403144249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020257 + ... + 1041983.

It is an arithmetic number, because the mean of its divisors is an integer number (1302343728).

Almost surely, 2^22403144240 is an apocalyptic number.

22403144240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22403144240 is an abundant number, since it is smaller than the sum of its proper divisors (29690604880).

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

22403144240 is a wasteful number, since it uses less digits than its factorization.

22403144240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34629 (or 34623 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22403144240 its reverse (4244130422), we get a palindrome (26647274662).

The spelling of 22403144240 in words is "twenty-two billion, four hundred three million, one hundred forty-four thousand, two hundred forty".