2043440334245 has 4 divisors (see below), whose sum is σ = 2452128401100. Its totient is φ = 1634752267392.

The previous prime is 2043440334233. The next prime is 2043440334259. The reversal of 2043440334245 is 5424330443402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1383084194116 + 660356140129 = 1176046^2 + 812623^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043440334245 - 2⁶ = 2043440334181 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2043440334199 and 2043440334208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204344033420 + ... + 204344033429.

It is an arithmetic number, because the mean of its divisors is an integer number (613032100275).

Almost surely, 2^{2043440334245} is an apocalyptic number.

It is an amenable number.

2043440334245 is a deficient number, since it is larger than the sum of its proper divisors (408688066855).

2043440334245 is an equidigital number, since it uses as much as digits as its factorization.

2043440334245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408688066854.

The product of its (nonzero) digits is 552960, while the sum is 38.

Adding to 2043440334245 its reverse (5424330443402), we get a palindrome (7467770777647).

The spelling of 2043440334245 in words is "two trillion, forty-three billion, four hundred forty million, three hundred thirty-four thousand, two hundred forty-five".