24143221396 has 144 divisors (see below), whose sum is σ = 51142734720. Its totient is φ = 9939283200.

The previous prime is 24143221391. The next prime is 24143221447. The reversal of 24143221396 is 69312234142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24143221391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144570105 + ... + 144570271.

It is an arithmetic number, because the mean of its divisors is an integer number (355157880).

Almost surely, 2^24143221396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24143221396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25571367360).

24143221396 is an abundant number, since it is smaller than the sum of its proper divisors (26999513324).

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

24143221396 is a wasteful number, since it uses less digits than its factorization.

24143221396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 453 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The spelling of 24143221396 in words is "twenty-four billion, one hundred forty-three million, two hundred twenty-one thousand, three hundred ninety-six".