2443597245 has 18 divisors (see below), whose sum is σ = 4236143418. Its totient is φ = 1303075008.

The previous prime is 2443597241. The next prime is 2443597301. The reversal of 2443597245 is 5427953442.

It can be written as a sum of positive squares in 3 ways, for example, as 1322485956 + 1121111289 = 36366^2 + 33483^2 .

It is not a de Polignac number, because 2443597245 - 2² = 2443597241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2443597245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443597241) 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 17 ways as a sum of consecutive naturals, for example, 327921 + ... + 335289.

It is an arithmetic number, because the mean of its divisors is an integer number (235341301).

Almost surely, 2^2443597245 is an apocalyptic number.

It is an amenable number.

2443597245 is a deficient number, since it is larger than the sum of its proper divisors (1792546173).

2443597245 is an frugal number, since it uses more digits than its factorization.

2443597245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14749 (or 7377 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 2443597245 is about 49432.7547785879. The cubic root of 2443597245 is about 1346.9243645145.

Multiplying 2443597245 by its sum of digits (45), we get a square (109961876025 = 331605²).

2443597245 divided by its sum of digits (45) gives a square (54302161 = 7369²).

The spelling of 2443597245 in words is "two billion, four hundred forty-three million, five hundred ninety-seven thousand, two hundred forty-five".