23241220 has 12 divisors (see below), whose sum is σ = 48806604. Its totient is φ = 9296480.

The previous prime is 23241191. The next prime is 23241233. The reversal of 23241220 is 2214232.

It can be written as a sum of positive squares in 2 ways, for example, as 16144324 + 7096896 = 4018^2 + 2664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23241194 and 23241203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581011 + ... + 581050.

It is an arithmetic number, because the mean of its divisors is an integer number (4067217).

Almost surely, 2^23241220 is an apocalyptic number.

23241220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23241220 is an abundant number, since it is smaller than the sum of its proper divisors (25565384).

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

23241220 is a wasteful number, since it uses less digits than its factorization.

23241220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162070 (or 1162068 counting only the distinct ones).

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

The square root of 23241220 is about 4820.9148509386. The cubic root of 23241220 is about 285.3774418423.

Adding to 23241220 its reverse (2214232), we get a palindrome (25455452).

The spelling of 23241220 in words is "twenty-three million, two hundred forty-one thousand, two hundred twenty".