2302403220 has 144 divisors (see below), whose sum is σ = 7536372480. Its totient is φ = 565602048.

The previous prime is 2302403219. The next prime is 2302403237. The reversal of 2302403220 is 223042032.

2302403220 is a `hidden beast` number, since 2 + 302 + 40 + 322 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2302403193 and 2302403202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2215461 + ... + 2216499.

It is an arithmetic number, because the mean of its divisors is an integer number (52335920).

Almost surely, 2^2302403220 is an apocalyptic number.

2302403220 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 2302403220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3768186240).

2302403220 is an abundant number, since it is smaller than the sum of its proper divisors (5233969260).

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

2302403220 is a wasteful number, since it uses less digits than its factorization.

2302403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2302403220 is about 47983.3639921171. The cubic root of 2302403220 is about 1320.4657103287.

Adding to 2302403220 its reverse (223042032), we get a palindrome (2525445252).

The spelling of 2302403220 in words is "two billion, three hundred two million, four hundred three thousand, two hundred twenty".