2302243220 has 48 divisors (see below), whose sum is σ = 4958731008. Its totient is φ = 897375360.

The previous prime is 2302243217. The next prime is 2302243283. The reversal of 2302243220 is 223422032.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2302243192 and 2302243201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393557 + ... + 399363.

It is an arithmetic number, because the mean of its divisors is an integer number (103306896).

Almost surely, 2^2302243220 is an apocalyptic number.

2302243220 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 2302243220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479365504).

2302243220 is an abundant number, since it is smaller than the sum of its proper divisors (2656487788).

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

2302243220 is a wasteful number, since it uses less digits than its factorization.

2302243220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2302243220 is about 47981.6967186447. The cubic root of 2302243220 is about 1320.4351220856.

Adding to 2302243220 its reverse (223422032), we get a palindrome (2525665252).

The spelling of 2302243220 in words is "two billion, three hundred two million, two hundred forty-three thousand, two hundred twenty".