40016233 has 4 divisors (see below), whose sum is σ = 40084308. Its totient is φ = 39948160.

The previous prime is 40016231. The next prime is 40016237. The reversal of 40016233 is 33261004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33605209 + 6411024 = 5797^2 + 2532^2 .

It is a cyclic number.

It is not a de Polignac number, because 40016233 - 2¹ = 40016231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40016233.

It is not an unprimeable number, because it can be changed into a prime (40016231) 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, 33148 + ... + 34333.

It is an arithmetic number, because the mean of its divisors is an integer number (10021077).

Almost surely, 2^40016233 is an apocalyptic number.

It is an amenable number.

40016233 is a deficient number, since it is larger than the sum of its proper divisors (68075).

40016233 is an equidigital number, since it uses as much as digits as its factorization.

40016233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68074.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 40016233 is about 6325.8385214926. The cubic root of 40016233 is about 342.0414464777.

Adding to 40016233 its reverse (33261004), we get a palindrome (73277237).

The spelling of 40016233 in words is "forty million, sixteen thousand, two hundred thirty-three".