2303220 has 48 divisors (see below), whose sum is σ = 6733440. Its totient is φ = 587136.

The previous prime is 2303219. The next prime is 2303227. The reversal of 2303220 is 223032.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2303196 and 2303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (140280).

2^2303220 is an apocalyptic number.

2303220 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 2303220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3366720).

2303220 is an abundant number, since it is smaller than the sum of its proper divisors (4430220).

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

2303220 is a wasteful number, since it uses less digits than its factorization.

2303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 2303220 is about 1517.6363200714. The cubic root of 2303220 is about 132.0621837408.

Adding to 2303220 its reverse (223032), we get a palindrome (2526252).

The spelling of 2303220 in words is "two million, three hundred three thousand, two hundred twenty".