40216233 has 4 divisors (see below), whose sum is σ = 53621648. Its totient is φ = 26810820.

The previous prime is 40216219. The next prime is 40216273. The reversal of 40216233 is 33261204.

It is a happy number.

40216233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40216233 - 2¹³ = 40208041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (40216273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6702703 + ... + 6702708.

It is an arithmetic number, because the mean of its divisors is an integer number (13405412).

Almost surely, 2^40216233 is an apocalyptic number.

It is an amenable number.

40216233 is a deficient number, since it is larger than the sum of its proper divisors (13405415).

40216233 is a wasteful number, since it uses less digits than its factorization.

40216233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13405414.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40216233 is about 6341.6269994379. The cubic root of 40216233 is about 342.6103375835.

Adding to 40216233 its reverse (33261204), we get a palindrome (73477437).

The spelling of 40216233 in words is "forty million, two hundred sixteen thousand, two hundred thirty-three".