23271616 has 14 divisors (see below), whose sum is σ = 46179740. Its totient is φ = 11635776.

The previous prime is 23271587. The next prime is 23271629. The reversal of 23271616 is 61617232.

It is a super-2 number, since 2×23271616² = 1083136222502912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181746 + ... + 181873.

Almost surely, 2^23271616 is an apocalyptic number.

It is an amenable number.

23271616 is a deficient number, since it is larger than the sum of its proper divisors (22908124).

23271616 is an equidigital number, since it uses as much as digits as its factorization.

23271616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363631 (or 363621 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 23271616 is about 4824.0663345356. The cubic root of 23271616 is about 285.5017978198.

Adding to 23271616 its reverse (61617232), we get a palindrome (84888848).

The spelling of 23271616 in words is "twenty-three million, two hundred seventy-one thousand, six hundred sixteen".