43401440234 has 8 divisors (see below), whose sum is σ = 65147914560. Its totient is φ = 21685468716.

The previous prime is 43401440231. The next prime is 43401440267. The reversal of 43401440234 is 43204410434.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 43401440197 and 43401440206.

It is not an unprimeable number, because it can be changed into a prime (43401440231) 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, 7622144 + ... + 7627835.

It is an arithmetic number, because the mean of its divisors is an integer number (8143489320).

Almost surely, 2^43401440234 is an apocalyptic number.

43401440234 is a deficient number, since it is larger than the sum of its proper divisors (21746474326).

43401440234 is a wasteful number, since it uses less digits than its factorization.

43401440234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15251404.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 43401440234 its reverse (43204410434), we get a palindrome (86605850668).

The spelling of 43401440234 in words is "forty-three billion, four hundred one million, four hundred forty thousand, two hundred thirty-four".