43040896369 has 3 divisors (see below), whose sum is σ = 43041103833. Its totient is φ = 43040688906.

The previous prime is 43040896351. The next prime is 43040896417. The reversal of 43040896369 is 96369804034.

The square root of 43040896369 is 207463.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 43040896369 - 2⁹ = 43040895857 is a prime.

It is a super-2 number, since 2×43040896369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43040896309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 103732 + ... + 311194.

It is an arithmetic number, because the mean of its divisors is an integer number (14347034611).

Almost surely, 2^43040896369 is an apocalyptic number.

43040896369 is the 207463-rd square number.

43040896369 is the 103732-nd centered octagonal number.

It is an amenable number.

43040896369 is a deficient number, since it is larger than the sum of its proper divisors (207464).

43040896369 is an frugal number, since it uses more digits than its factorization.

43040896369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414926 (or 207463 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 43040896369 in words is "forty-three billion, forty million, eight hundred ninety-six thousand, three hundred sixty-nine".