43430140441 has 4 divisors (see below), whose sum is σ = 43836029712. Its totient is φ = 43024251172.

The previous prime is 43430140399. The next prime is 43430140459. The reversal of 43430140441 is 14404103434.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43430140441 - 2¹¹ = 43430138393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43430140141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202944475 + ... + 202944688.

It is an arithmetic number, because the mean of its divisors is an integer number (10959007428).

Almost surely, 2^43430140441 is an apocalyptic number.

It is an amenable number.

43430140441 is a deficient number, since it is larger than the sum of its proper divisors (405889271).

43430140441 is a wasteful number, since it uses less digits than its factorization.

43430140441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405889270.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 43430140441 its reverse (14404103434), we get a palindrome (57834243875).

The spelling of 43430140441 in words is "forty-three billion, four hundred thirty million, one hundred forty thousand, four hundred forty-one".