23221634 has 16 divisors (see below), whose sum is σ = 36875520. Its totient is φ = 10948560.

The previous prime is 23221631. The next prime is 23221669. The reversal of 23221634 is 43612232.

It is not an unprimeable number, because it can be changed into a prime (23221631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2162 + ... + 7149.

It is an arithmetic number, because the mean of its divisors is an integer number (2304720).

Almost surely, 2^23221634 is an apocalyptic number.

23221634 is a deficient number, since it is larger than the sum of its proper divisors (13653886).

23221634 is a wasteful number, since it uses less digits than its factorization.

23221634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385.

The product of its digits is 1728, while the sum is 23.

The square root of 23221634 is about 4818.8830656076. The cubic root of 23221634 is about 285.2972542356.

Adding to 23221634 its reverse (43612232), we get a palindrome (66833866).

The spelling of 23221634 in words is "twenty-three million, two hundred twenty-one thousand, six hundred thirty-four".