3312240 has 80 divisors (see below), whose sum is σ = 10573728. Its totient is φ = 857088.

The previous prime is 3312227. The next prime is 3312307. The reversal of 3312240 is 422133.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 8694 + ... + 9066.

Almost surely, 2^3312240 is an apocalyptic number.

3312240 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 3312240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5286864).

3312240 is an abundant number, since it is smaller than the sum of its proper divisors (7261488).

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

3312240 is a wasteful number, since it uses less digits than its factorization.

3312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3312240 is about 1819.9560434252. The cubic root of 3312240 is about 149.0643986898.

Adding to 3312240 its reverse (422133), we get a palindrome (3734373).

The spelling of 3312240 in words is "three million, three hundred twelve thousand, two hundred forty".