22302203640 has 64 divisors (see below), whose sum is σ = 66918873600. Its totient is φ = 5946164352.

The previous prime is 22302203633. The next prime is 22302203641. The reversal of 22302203640 is 4630220322.

It is a happy number.

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 22302203640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22302203641) 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 15 ways as a sum of consecutive naturals, for example, 805141 + ... + 832379.

It is an arithmetic number, because the mean of its divisors is an integer number (1045607400).

Almost surely, 2^22302203640 is an apocalyptic number.

22302203640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22302203640 is an abundant number, since it is smaller than the sum of its proper divisors (44616669960).

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

22302203640 is a wasteful number, since it uses less digits than its factorization.

22302203640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34076 (or 34072 counting only the distinct ones).

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

Adding to 22302203640 its reverse (4630220322), we get a palindrome (26932423962).

The spelling of 22302203640 in words is "twenty-two billion, three hundred two million, two hundred three thousand, six hundred forty".