24129894244 has 27 divisors (see below), whose sum is σ = 42705079851. Its totient is φ = 11929958400.

The previous prime is 24129894241. The next prime is 24129894253. The reversal of 24129894244 is 44249892142.

The square root of 24129894244 is 155338.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5074852644 + 19055041600 = 71238^2 + 138040^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24129894241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31377892 + ... + 31378660.

Almost surely, 2^24129894244 is an apocalyptic number.

24129894244 is the 155338-th square number.

It is an amenable number.

24129894244 is a deficient number, since it is larger than the sum of its proper divisors (18575185607).

24129894244 is an frugal number, since it uses more digits than its factorization.

24129894244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 872 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

Multiplying 24129894244 by its sum of digits (49), we get a square (1182364817956 = 1087366²).

The spelling of 24129894244 in words is "twenty-four billion, one hundred twenty-nine million, eight hundred ninety-four thousand, two hundred forty-four".