3339820 has 96 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1059840.

The previous prime is 3339797. The next prime is 3339857. The reversal of 3339820 is 289333.

It is a happy number.

3339820 is a nontrivial binomial coefficient, being equal to C(2585, 2).

It is a super-2 number, since 2×3339820² = 22308795264800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71037 + ... + 71083.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

Almost surely, 2^3339820 is an apocalyptic number.

3339820 is the 2584-th triangular number.

3339820 is the 862-nd centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3339820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354560).

3339820 is an abundant number, since it is smaller than the sum of its proper divisors (5369300).

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

3339820 is a wasteful number, since it uses less digits than its factorization.

3339820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3339820 is about 1827.5174417772. The cubic root of 3339820 is about 149.4769933613.

It can be divided in two parts, 333 and 9820, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 3339820 in words is "three million, three hundred thirty-nine thousand, eight hundred twenty".