2445994849 has 15 divisors (see below), whose sum is σ = 2600865827. Its totient is φ = 2300343984.

The previous prime is 2445994807. The next prime is 2445994861. The reversal of 2445994849 is 9484995442.

The square root of 2445994849 is 49457.

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

2445994849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1436789025 + 1009205824 = 37905^2 + 31768^2 .

It is not a de Polignac number, because 2445994849 - 2¹³ = 2445986657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2445994793 and 2445994802.

It is not an unprimeable number, because it can be changed into a prime (2445994549) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17853909 + ... + 17854045.

Almost surely, 2^2445994849 is an apocalyptic number.

2445994849 is the 49457-th square number.

2445994849 is the 24729-th centered octagonal number.

It is an amenable number.

2445994849 is a deficient number, since it is larger than the sum of its proper divisors (154870978).

2445994849 is an frugal number, since it uses more digits than its factorization.

2445994849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 156 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 58.

The cubic root of 2445994849 is about 1347.3647447262.

The spelling of 2445994849 in words is "two billion, four hundred forty-five million, nine hundred ninety-four thousand, eight hundred forty-nine".