23272566 has 8 divisors (see below), whose sum is σ = 46545144. Its totient is φ = 7757520.

The previous prime is 23272559. The next prime is 23272591. The reversal of 23272566 is 66527232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

23272566 is an admirable number.

It is a super-2 number, since 2×23272566² = 1083224656448712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1939375 + ... + 1939386.

It is an arithmetic number, because the mean of its divisors is an integer number (5818143).

Almost surely, 2^23272566 is an apocalyptic number.

23272566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23272566 is a wasteful number, since it uses less digits than its factorization.

23272566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878766.

The product of its digits is 30240, while the sum is 33.

The square root of 23272566 is about 4824.1647981801. The cubic root of 23272566 is about 285.5056827100.

Adding to 23272566 its reverse (66527232), we get a palindrome (89799798).

The spelling of 23272566 in words is "twenty-three million, two hundred seventy-two thousand, five hundred sixty-six".