1112443440 has 40 divisors (see below), whose sum is σ = 3448575408. Its totient is φ = 296651520.

The previous prime is 1112443429. The next prime is 1112443441. The reversal of 1112443440 is 443442111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1112443440.

It is not an unprimeable number, because it can be changed into a prime (1112443441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2317351 + ... + 2317830.

Almost surely, 2^1112443440 is an apocalyptic number.

1112443440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112443440 is an abundant number, since it is smaller than the sum of its proper divisors (2336131968).

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

1112443440 is a wasteful number, since it uses less digits than its factorization.

1112443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635197 (or 4635191 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1112443440 is about 33353.3122792924. The cubic root of 1112443440 is about 1036.1579888552.

Adding to 1112443440 its reverse (443442111), we get a palindrome (1555885551).

The spelling of 1112443440 in words is "one billion, one hundred twelve million, four hundred forty-three thousand, four hundred forty".