1112400042 has 128 divisors (see below), whose sum is σ = 2574028800. Its totient is φ = 318110976.

The previous prime is 1112400019. The next prime is 1112400059. The reversal of 1112400042 is 2400042111.

It is a junction number, because it is equal to n+sod(n) for n = 1112399994 and 1112400030.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8002809 + ... + 8002947.

It is an arithmetic number, because the mean of its divisors is an integer number (20109600).

Almost surely, 2^1112400042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112400042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287014400).

1112400042 is an abundant number, since it is smaller than the sum of its proper divisors (1461628758).

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

1112400042 is a wasteful number, since it uses less digits than its factorization.

1112400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1112400042 is about 33352.6616928844. The cubic root of 1112400042 is about 1036.1445146812.

Adding to 1112400042 its reverse (2400042111), we get a palindrome (3512442153).

It can be divided in two parts, 111 and 2400042, that multiplied together give a palindrome (266404662).

The spelling of 1112400042 in words is "one billion, one hundred twelve million, four hundred thousand, forty-two".