1112443420 has 24 divisors (see below), whose sum is σ = 2548507248. Its totient is φ = 404524800.

The previous prime is 1112443417. The next prime is 1112443429. The reversal of 1112443420 is 243442111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1112443391 and 1112443400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112443429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2528061 + ... + 2528500.

It is an arithmetic number, because the mean of its divisors is an integer number (106187802).

Almost surely, 2^1112443420 is an apocalyptic number.

1112443420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112443420 is an abundant number, since it is smaller than the sum of its proper divisors (1436063828).

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

1112443420 is a wasteful number, since it uses less digits than its factorization.

1112443420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056581 (or 5056579 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1112443420 is about 33353.3119794721. The cubic root of 1112443420 is about 1036.1579826457.

Adding to 1112443420 its reverse (243442111), we get a palindrome (1355885531).

The spelling of 1112443420 in words is "one billion, one hundred twelve million, four hundred forty-three thousand, four hundred twenty".