3843220 has 12 divisors (see below), whose sum is σ = 8070804. Its totient is φ = 1537280.

The previous prime is 3843199. The next prime is 3843221. The reversal of 3843220 is 223483.

It can be written as a sum of positive squares in 2 ways, for example, as 2446096 + 1397124 = 1564^2 + 1182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3843191 and 3843200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3843221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96061 + ... + 96100.

It is an arithmetic number, because the mean of its divisors is an integer number (672567).

Almost surely, 2^3843220 is an apocalyptic number.

It is an amenable number.

3843220 is an abundant number, since it is smaller than the sum of its proper divisors (4227584).

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

3843220 is a wasteful number, since it uses less digits than its factorization.

3843220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192170 (or 192168 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3843220 is about 1960.4132217469. The cubic root of 3843220 is about 156.6384638132.

The spelling of 3843220 in words is "three million, eight hundred forty-three thousand, two hundred twenty".