3339840 has 168 divisors, whose sum is σ = 12508992. Its totient is φ = 752640.

The previous prime is 3339797. The next prime is 3339857. The reversal of 3339840 is 489333.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×3339840² = 22309062451200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3339798 and 3339807.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47005 + ... + 47075.

Almost surely, 2^3339840 is an apocalyptic number.

3339840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3339840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6254496).

3339840 is an abundant number, since it is smaller than the sum of its proper divisors (9169152).

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

3339840 is a wasteful number, since it uses less digits than its factorization.

3339840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3339840 is about 1827.5229136730. The cubic root of 3339840 is about 149.4772917340.

The spelling of 3339840 in words is "three million, three hundred thirty-nine thousand, eight hundred forty".