43400240513045 has 8 divisors (see below), whose sum is σ = 56086464663096. Its totient is φ = 32049408378816.

The previous prime is 43400240513041. The next prime is 43400240513129. The reversal of 43400240513045 is 54031504200434.

It can be written as a sum of positive squares in 4 ways, for example, as 1454527657444 + 41945712855601 = 1206038^2 + 6476551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43400240513045 - 2² = 43400240513041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43400240512996 and 43400240513014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43400240513041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333848003882 + ... + 333848004011.

It is an arithmetic number, because the mean of its divisors is an integer number (7010808082887).

Almost surely, 2^{43400240513045} is an apocalyptic number.

It is an amenable number.

43400240513045 is a deficient number, since it is larger than the sum of its proper divisors (12686224150051).

43400240513045 is a wasteful number, since it uses less digits than its factorization.

43400240513045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667696007911.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 43400240513045 its reverse (54031504200434), we get a palindrome (97431744713479).

The spelling of 43400240513045 in words is "forty-three trillion, four hundred billion, two hundred forty million, five hundred thirteen thousand, forty-five".