23242220 has 24 divisors (see below), whose sum is σ = 49611408. Its totient is φ = 9144000.

The previous prime is 23242211. The next prime is 23242223. The reversal of 23242220 is 2224232.

It is not an unprimeable number, because it can be changed into a prime (23242223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8306 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (2067142).

Almost surely, 2^23242220 is an apocalyptic number.

23242220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23242220 is an abundant number, since it is smaller than the sum of its proper divisors (26369188).

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

23242220 is a wasteful number, since it uses less digits than its factorization.

23242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19121 (or 19119 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 23242220 is about 4821.0185645774. The cubic root of 23242220 is about 285.3815347621.

Adding to 23242220 its reverse (2224232), we get a palindrome (25466452).

The spelling of 23242220 in words is "twenty-three million, two hundred forty-two thousand, two hundred twenty".