24223621240 has 128 divisors (see below), whose sum is σ = 67210254720. Its totient is φ = 7651584000.

The previous prime is 24223621237. The next prime is 24223621241. The reversal of 24223621240 is 4212632242.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 24223621199 and 24223621208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24223621241) 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 31 ways as a sum of consecutive naturals, for example, 1963090 + ... + 1975390.

It is an arithmetic number, because the mean of its divisors is an integer number (525080115).

Almost surely, 2^24223621240 is an apocalyptic number.

24223621240 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 24223621240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33605127360).

24223621240 is an abundant number, since it is smaller than the sum of its proper divisors (42986633480).

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

24223621240 is a wasteful number, since it uses less digits than its factorization.

24223621240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12873 (or 12869 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 24223621240 in words is "twenty-four billion, two hundred twenty-three million, six hundred twenty-one thousand, two hundred forty".