2399824144 has 45 divisors (see below), whose sum is σ = 4793202981. Its totient is φ = 1163954880.

The previous prime is 2399824139. The next prime is 2399824151. The reversal of 2399824144 is 4414289932.

The square root of 2399824144 is 48988.

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

It can be written as a sum of positive squares in only one way, i.e., 2147395600 + 252428544 = 46340^2 + 15888^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2399824094 and 2399824103.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7250059 + ... + 7250389.

Almost surely, 2^2399824144 is an apocalyptic number.

2399824144 is the 48988-th square number.

It is an amenable number.

2399824144 is a deficient number, since it is larger than the sum of its proper divisors (2393378837).

2399824144 is an frugal number, since it uses more digits than its factorization.

2399824144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 370 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The cubic root of 2399824144 is about 1338.8331983098.

The spelling of 2399824144 in words is "two billion, three hundred ninety-nine million, eight hundred twenty-four thousand, one hundred forty-four".