3113440 has 96 divisors (see below), whose sum is σ = 8436960. Its totient is φ = 1075200.

The previous prime is 3113437. The next prime is 3113443. The reversal of 3113440 is 443113.

It is an interprime number because it is at equal distance from previous prime (3113437) and next prime (3113443).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51010 + ... + 51070.

It is an arithmetic number, because the mean of its divisors is an integer number (87885).

Almost surely, 2^3113440 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 3113440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4218480).

3113440 is an abundant number, since it is smaller than the sum of its proper divisors (5323520).

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

3113440 is a wasteful number, since it uses less digits than its factorization.

3113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3113440 is about 1764.4942618212. The cubic root of 3113440 is about 146.0203887208.

Adding to 3113440 its reverse (443113), we get a palindrome (3556553).

It can be divided in two parts, 3113 and 440, that added together give a palindrome (3553).

The spelling of 3113440 in words is "three million, one hundred thirteen thousand, four hundred forty".