3391840 has 96 divisors (see below), whose sum is σ = 8981280. Its totient is φ = 1204224.

The previous prime is 3391831. The next prime is 3391853. The reversal of 3391840 is 481933.

It is a junction number, because it is equal to n+sod(n) for n = 3391799 and 3391808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78859 + ... + 78901.

It is an arithmetic number, because the mean of its divisors is an integer number (93555).

Almost surely, 2^3391840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3391840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4490640).

3391840 is an abundant number, since it is smaller than the sum of its proper divisors (5589440).

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

3391840 is a wasteful number, since it uses less digits than its factorization.

3391840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3391840 is about 1841.6948715789. The cubic root of 3391840 is about 150.2490676878.

The spelling of 3391840 in words is "three million, three hundred ninety-one thousand, eight hundred forty".