3261320 has 16 divisors (see below), whose sum is σ = 7338060. Its totient is φ = 1304512.

The previous prime is 3261317. The next prime is 3261337. The reversal of 3261320 is 231623.

It can be written as a sum of positive squares in 2 ways, for example, as 3147076 + 114244 = 1774^2 + 338^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40727 + ... + 40806.

Almost surely, 2^3261320 is an apocalyptic number.

It is an amenable number.

3261320 is an abundant number, since it is smaller than the sum of its proper divisors (4076740).

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

3261320 is a wasteful number, since it uses less digits than its factorization.

3261320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81544 (or 81540 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3261320 is about 1805.9125117236. The cubic root of 3261320 is about 148.2965808313.

Adding to 3261320 its reverse (231623), we get a palindrome (3492943).

The spelling of 3261320 in words is "three million, two hundred sixty-one thousand, three hundred twenty".