24223325640 has 128 divisors (see below), whose sum is σ = 74239027200. Its totient is φ = 6320737280.

The previous prime is 24223325597. The next prime is 24223325641. The reversal of 24223325640 is 4652332242.

It is a super-2 number, since 2×24223325640² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24223325641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2469145 + ... + 2478935.

It is an arithmetic number, because the mean of its divisors is an integer number (579992400).

Almost surely, 2^24223325640 is an apocalyptic number.

24223325640 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 24223325640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37119513600).

24223325640 is an abundant number, since it is smaller than the sum of its proper divisors (50015701560).

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

24223325640 is a wasteful number, since it uses less digits than its factorization.

24223325640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247 (or 10243 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 24223325640 its reverse (4652332242), we get a palindrome (28875657882).

The spelling of 24223325640 in words is "twenty-four billion, two hundred twenty-three million, three hundred twenty-five thousand, six hundred forty".