3189220 has 24 divisors (see below), whose sum is σ = 6742008. Its totient is φ = 1267200.

The previous prime is 3189191. The next prime is 3189227. The reversal of 3189220 is 229813.

It can be written as a sum of positive squares in 4 ways, for example, as 119716 + 3069504 = 346^2 + 1752^2 .

It is a super-2 number, since 2×3189220² = 20342248416800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3189227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180 + ... + 4060.

It is an arithmetic number, because the mean of its divisors is an integer number (280917).

Almost surely, 2^3189220 is an apocalyptic number.

It is an amenable number.

3189220 is an abundant number, since it is smaller than the sum of its proper divisors (3552788).

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

3189220 is a wasteful number, since it uses less digits than its factorization.

3189220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3189220 is about 1785.8387385204. The cubic root of 3189220 is about 147.1955993683.

The spelling of 3189220 in words is "three million, one hundred eighty-nine thousand, two hundred twenty".