43240401235 has 16 divisors (see below), whose sum is σ = 54183908160. Its totient is φ = 33064225920.

The previous prime is 43240401203. The next prime is 43240401247. The reversal of 43240401235 is 53210404234.

It is a happy number.

It is not a de Polignac number, because 43240401235 - 2⁵ = 43240401203 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22681 + ... + 294949.

It is an arithmetic number, because the mean of its divisors is an integer number (3386494260).

Almost surely, 2^43240401235 is an apocalyptic number.

43240401235 is a deficient number, since it is larger than the sum of its proper divisors (10943506925).

43240401235 is a wasteful number, since it uses less digits than its factorization.

43240401235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273678.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 43240401235 its reverse (53210404234), we get a palindrome (96450805469).

The spelling of 43240401235 in words is "forty-three billion, two hundred forty million, four hundred one thousand, two hundred thirty-five".