1112440 has 64 divisors (see below), whose sum is σ = 2980800. Its totient is φ = 365568.

The previous prime is 1112413. The next prime is 1112467. The reversal of 1112440 is 442111.

It is an interprime number because it is at equal distance from previous prime (1112413) and next prime (1112467).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8052 + ... + 8188.

It is an arithmetic number, because the mean of its divisors is an integer number (46575).

2^1112440 is an apocalyptic number.

1112440 is a gapful number since it is divisible by the number (10) 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 1112440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490400).

1112440 is an abundant number, since it is smaller than the sum of its proper divisors (1868360).

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

1112440 is a wasteful number, since it uses less digits than its factorization.

1112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1112440 is about 1054.7227123752. The cubic root of 1112440 is about 103.6156920820.

Adding to 1112440 its reverse (442111), we get a palindrome (1554551).

The spelling of 1112440 in words is "one million, one hundred twelve thousand, four hundred forty".