22402330440 has 128 divisors (see below), whose sum is σ = 78257352960. Its totient is φ = 5023908864.

The previous prime is 22402330427. The next prime is 22402330477. The reversal of 22402330440 is 4403320422.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22402330440.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 207079 + ... + 296118.

It is an arithmetic number, because the mean of its divisors is an integer number (611385570).

Almost surely, 2^22402330440 is an apocalyptic number.

22402330440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22402330440 is an abundant number, since it is smaller than the sum of its proper divisors (55855022520).

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

22402330440 is a wasteful number, since it uses less digits than its factorization.

22402330440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503271 (or 503267 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 22402330440 its reverse (4403320422), we get a palindrome (26805650862).

The spelling of 22402330440 in words is "twenty-two billion, four hundred two million, three hundred thirty thousand, four hundred forty".