3261330 has 64 divisors (see below), whose sum is σ = 8916480. Its totient is φ = 847872.

The previous prime is 3261317. The next prime is 3261337. The reversal of 3261330 is 331623.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3261337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12562 + ... + 12818.

It is an arithmetic number, because the mean of its divisors is an integer number (139320).

Almost surely, 2^3261330 is an apocalyptic number.

3261330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4458240).

3261330 is an abundant number, since it is smaller than the sum of its proper divisors (5655150).

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

3261330 is a wasteful number, since it uses less digits than its factorization.

3261330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3261330 is about 1805.9152804049. The cubic root of 3261330 is about 148.2967324023.

Adding to 3261330 its reverse (331623), we get a palindrome (3592953).

The spelling of 3261330 in words is "three million, two hundred sixty-one thousand, three hundred thirty".