3396440 has 64 divisors (see below), whose sum is σ = 8316000. Its totient is φ = 1244160.

The previous prime is 3396439. The next prime is 3396457. The reversal of 3396440 is 446933.

It is a happy number.

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, 31106 + ... + 31214.

Almost surely, 2^3396440 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 3396440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4158000).

3396440 is an abundant number, since it is smaller than the sum of its proper divisors (4919560).

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

3396440 is a wasteful number, since it uses less digits than its factorization.

3396440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3396440 is about 1842.9432980968. The cubic root of 3396440 is about 150.3169594028.

The spelling of 3396440 in words is "three million, three hundred ninety-six thousand, four hundred forty".