2443540745 has 32 divisors (see below), whose sum is σ = 3105991680. Its totient is φ = 1842912000.

The previous prime is 2443540741. The next prime is 2443540751. The reversal of 2443540745 is 5470453442.

It is a happy number.

It is not a de Polignac number, because 2443540745 - 2² = 2443540741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2443540699 and 2443540708.

It is not an unprimeable number, because it can be changed into a prime (2443540741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029410 + ... + 1031780.

It is an arithmetic number, because the mean of its divisors is an integer number (97062240).

Almost surely, 2^2443540745 is an apocalyptic number.

It is an amenable number.

2443540745 is a deficient number, since it is larger than the sum of its proper divisors (662450935).

2443540745 is a wasteful number, since it uses less digits than its factorization.

2443540745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577.

The product of its (nonzero) digits is 268800, while the sum is 38.

The square root of 2443540745 is about 49432.1832918596. The cubic root of 2443540745 is about 1346.9139833966.

The spelling of 2443540745 in words is "two billion, four hundred forty-three million, five hundred forty thousand, seven hundred forty-five".