40043234 has 32 divisors (see below), whose sum is σ = 76640256. Its totient is φ = 15235920.

The previous prime is 40043233. The next prime is 40043239. The reversal of 40043234 is 43234004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40043233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3599 + ... + 9645.

It is an arithmetic number, because the mean of its divisors is an integer number (2395008).

Almost surely, 2^40043234 is an apocalyptic number.

40043234 is a deficient number, since it is larger than the sum of its proper divisors (36597022).

40043234 is a wasteful number, since it uses less digits than its factorization.

40043234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40043234 is about 6327.9723450723. The cubic root of 40043234 is about 342.1183601364.

Adding to 40043234 its reverse (43234004), we get a palindrome (83277238).

It can be divided in two parts, 400 and 43234, that added together give a palindrome (43634).

The spelling of 40043234 in words is "forty million, forty-three thousand, two hundred thirty-four".