3439840 has 24 divisors (see below), whose sum is σ = 8127000. Its totient is φ = 1375872.

The previous prime is 3439829. The next prime is 3439841. The reversal of 3439840 is 489343.

3439840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3439841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10590 + ... + 10909.

It is an arithmetic number, because the mean of its divisors is an integer number (338625).

Almost surely, 2^3439840 is an apocalyptic number.

It is an amenable number.

3439840 is an abundant number, since it is smaller than the sum of its proper divisors (4687160).

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

3439840 is a wasteful number, since it uses less digits than its factorization.

3439840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21514 (or 21506 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 3439840 is about 1854.6805654883. The cubic root of 3439840 is about 150.9545058332.

The spelling of 3439840 in words is "three million, four hundred thirty-nine thousand, eight hundred forty".