23460220 has 72 divisors (see below), whose sum is σ = 58949856. Its totient is φ = 7814016.

The previous prime is 23460209. The next prime is 23460247. The reversal of 23460220 is 2206432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35937 + ... + 36583.

It is an arithmetic number, because the mean of its divisors is an integer number (818748).

Almost surely, 2^23460220 is an apocalyptic number.

23460220 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 23460220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29474928).

23460220 is an abundant number, since it is smaller than the sum of its proper divisors (35489636).

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

23460220 is a wasteful number, since it uses less digits than its factorization.

23460220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23460220 is about 4843.5751258755. The cubic root of 23460220 is about 286.2710033342.

Adding to 23460220 its reverse (2206432), we get a palindrome (25666652).

The spelling of 23460220 in words is "twenty-three million, four hundred sixty thousand, two hundred twenty".