3112240 has 20 divisors (see below), whose sum is σ = 7236144. Its totient is φ = 1244864.

The previous prime is 3112237. The next prime is 3112247. The reversal of 3112240 is 422113.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 3112240.

It is not an unprimeable number, because it can be changed into a prime (3112247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19372 + ... + 19531.

Almost surely, 2^3112240 is an apocalyptic number.

It is an amenable number.

3112240 is an abundant number, since it is smaller than the sum of its proper divisors (4123904).

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

3112240 is a wasteful number, since it uses less digits than its factorization.

3112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38916 (or 38910 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3112240 is about 1764.1541882727. The cubic root of 3112240 is about 146.0016263033.

Adding to 3112240 its reverse (422113), we get a palindrome (3534353).

The spelling of 3112240 in words is "three million, one hundred twelve thousand, two hundred forty".