23124220 has 24 divisors (see below), whose sum is σ = 55498464. Its totient is φ = 7928256.

The previous prime is 23124187. The next prime is 23124229. The reversal of 23124220 is 2242132.

It is a junction number, because it is equal to n+sod(n) for n = 23124194 and 23124203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124229) 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, 82447 + ... + 82726.

It is an arithmetic number, because the mean of its divisors is an integer number (2312436).

Almost surely, 2^23124220 is an apocalyptic number.

23124220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23124220 is an abundant number, since it is smaller than the sum of its proper divisors (32374244).

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

23124220 is a wasteful number, since it uses less digits than its factorization.

23124220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165189 (or 165187 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 23124220 is about 4808.7649141957. The cubic root of 23124220 is about 284.8977575184.

Adding to 23124220 its reverse (2242132), we get a palindrome (25366352).

The spelling of 23124220 in words is "twenty-three million, one hundred twenty-four thousand, two hundred twenty".