1112520440 has 64 divisors (see below), whose sum is σ = 2613180960. Its totient is φ = 425848320.

The previous prime is 1112520439. The next prime is 1112520449. The reversal of 1112520440 is 440252111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112520449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84119 + ... + 96441.

Almost surely, 2^1112520440 is an apocalyptic number.

1112520440 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 1112520440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306590480).

1112520440 is an abundant number, since it is smaller than the sum of its proper divisors (1500660520).

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

1112520440 is a wasteful number, since it uses less digits than its factorization.

1112520440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432 (or 12428 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1112520440 is about 33354.4665674629. The cubic root of 1112520440 is about 1036.1818948869.

Adding to 1112520440 its reverse (440252111), we get a palindrome (1552772551).

The spelling of 1112520440 in words is "one billion, one hundred twelve million, five hundred twenty thousand, four hundred forty".