23000220 has 96 divisors (see below), whose sum is σ = 72253440. Its totient is φ = 6073920.

The previous prime is 23000189. The next prime is 23000261. The reversal of 23000220 is 2200032.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103029 + ... + 103251.

It is an arithmetic number, because the mean of its divisors is an integer number (752640).

Almost surely, 2^23000220 is an apocalyptic number.

23000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36126720).

23000220 is an abundant number, since it is smaller than the sum of its proper divisors (49253220).

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

23000220 is a wasteful number, since it uses less digits than its factorization.

23000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 23000220 is about 4795.8544598434. The cubic root of 23000220 is about 284.3876047225.

Adding to 23000220 its reverse (2200032), we get a palindrome (25200252).

It can be divided in two parts, 23000 and 220, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 23000220 in words is "twenty-three million, two hundred twenty", and thus it is an aban number.