40009234 has 16 divisors (see below), whose sum is σ = 61269120. Its totient is φ = 19590480.

The previous prime is 40009201. The next prime is 40009253. The reversal of 40009234 is 43290004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19732 + ... + 21664.

It is an arithmetic number, because the mean of its divisors is an integer number (3829320).

Almost surely, 2^40009234 is an apocalyptic number.

40009234 is a deficient number, since it is larger than the sum of its proper divisors (21259886).

40009234 is a wasteful number, since it uses less digits than its factorization.

40009234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40009234 is about 6325.2852900087. The cubic root of 40009234 is about 342.0215038404.

Adding to 40009234 its reverse (43290004), we get a palindrome (83299238).

The spelling of 40009234 in words is "forty million, nine thousand, two hundred thirty-four".