23320642 has 16 divisors (see below), whose sum is σ = 35792640. Its totient is φ = 11392992.

The previous prime is 23320613. The next prime is 23320667. The reversal of 23320642 is 24602332.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15558 + ... + 16990.

It is an arithmetic number, because the mean of its divisors is an integer number (2237040).

Almost surely, 2^23320642 is an apocalyptic number.

23320642 is a deficient number, since it is larger than the sum of its proper divisors (12471998).

23320642 is a wasteful number, since it uses less digits than its factorization.

23320642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 23320642 is about 4829.1450589105. The cubic root of 23320642 is about 285.7021447936.

Adding to 23320642 its reverse (24602332), we get a palindrome (47922974).

The spelling of 23320642 in words is "twenty-three million, three hundred twenty thousand, six hundred forty-two".