22421300440 has 96 divisors (see below), whose sum is σ = 64019322000. Its totient is φ = 6988450560.

The previous prime is 22421300431. The next prime is 22421300449. The reversal of 22421300440 is 4400312422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22421300431) and next prime (22421300449).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421300449) 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 23 ways as a sum of consecutive naturals, for example, 498415 + ... + 541534.

Almost surely, 2^22421300440 is an apocalyptic number.

22421300440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22421300440 is an abundant number, since it is smaller than the sum of its proper divisors (41598021560).

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

22421300440 is a wasteful number, since it uses less digits than its factorization.

22421300440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039985 (or 1039974 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22421300440 its reverse (4400312422), we get a palindrome (26821612862).

The spelling of 22421300440 in words is "twenty-two billion, four hundred twenty-one million, three hundred thousand, four hundred forty".