3340440 has 80 divisors (see below), whose sum is σ = 11238480. Its totient is φ = 889920.

The previous prime is 3340429. The next prime is 3340453. The reversal of 3340440 is 440433.

3340440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3340440² = 22317078787200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2725 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (140481).

Almost surely, 2^3340440 is an apocalyptic number.

3340440 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 3340440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5619240).

3340440 is an abundant number, since it is smaller than the sum of its proper divisors (7898040).

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

3340440 is a wasteful number, since it uses less digits than its factorization.

3340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3340440 is about 1827.6870629295. The cubic root of 3340440 is about 149.4862423629.

Adding to 3340440 its reverse (440433), we get a palindrome (3780873).

The spelling of 3340440 in words is "three million, three hundred forty thousand, four hundred forty".