23004220 has 12 divisors (see below), whose sum is σ = 48308904. Its totient is φ = 9201680.

The previous prime is 23004211. The next prime is 23004227. The reversal of 23004220 is 2240032.

It is a self number, because there is not a number n which added to its sum of digits gives 23004220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23004227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575086 + ... + 575125.

It is an arithmetic number, because the mean of its divisors is an integer number (4025742).

Almost surely, 2^23004220 is an apocalyptic number.

23004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23004220 is an abundant number, since it is smaller than the sum of its proper divisors (25304684).

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

23004220 is a wasteful number, since it uses less digits than its factorization.

23004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150220 (or 1150218 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 23004220 is about 4796.2714685472. The cubic root of 23004220 is about 284.4040898471.

Adding to 23004220 its reverse (2240032), we get a palindrome (25244252).

The spelling of 23004220 in words is "twenty-three million, four thousand, two hundred twenty".