22430245640 has 128 divisors (see below), whose sum is σ = 56313792000. Its totient is φ = 7972224000.

The previous prime is 22430245639. The next prime is 22430245661. The reversal of 22430245640 is 4654203422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22430245597 and 22430245606.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3507566 + ... + 3513954.

It is an arithmetic number, because the mean of its divisors is an integer number (439951500).

Almost surely, 2^22430245640 is an apocalyptic number.

22430245640 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 22430245640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28156896000).

22430245640 is an abundant number, since it is smaller than the sum of its proper divisors (33883546360).

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

22430245640 is a wasteful number, since it uses less digits than its factorization.

22430245640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591 (or 6587 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The spelling of 22430245640 in words is "twenty-two billion, four hundred thirty million, two hundred forty-five thousand, six hundred forty".