40216223 has 4 divisors (see below), whose sum is σ = 41151528. Its totient is φ = 39280920.

The previous prime is 40216219. The next prime is 40216273. The reversal of 40216223 is 32261204.

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

It is a cyclic number.

It is not a de Polignac number, because 40216223 - 2² = 40216219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40216195 and 40216204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40216273) 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, 467588 + ... + 467673.

It is an arithmetic number, because the mean of its divisors is an integer number (10287882).

Almost surely, 2^40216223 is an apocalyptic number.

40216223 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40216223 is a deficient number, since it is larger than the sum of its proper divisors (935305).

40216223 is an equidigital number, since it uses as much as digits as its factorization.

40216223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935304.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40216223 is about 6341.6262109967. The cubic root of 40216223 is about 342.6103091862.

Adding to 40216223 its reverse (32261204), we get a palindrome (72477427).

The spelling of 40216223 in words is "forty million, two hundred sixteen thousand, two hundred twenty-three".