3305440 has 48 divisors (see below), whose sum is σ = 7944048. Its totient is φ = 1299456.

The previous prime is 3305417. The next prime is 3305447. The reversal of 3305440 is 445033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3305447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11539 + ... + 11821.

It is an arithmetic number, because the mean of its divisors is an integer number (165501).

Almost surely, 2^3305440 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 3305440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3972024).

3305440 is an abundant number, since it is smaller than the sum of its proper divisors (4638608).

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

3305440 is a wasteful number, since it uses less digits than its factorization.

3305440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 3305440 is about 1818.0869066137. The cubic root of 3305440 is about 148.9623194960.

The spelling of 3305440 in words is "three million, three hundred five thousand, four hundred forty".