1110042420 has 96 divisors (see below), whose sum is σ = 3283230720. Its totient is φ = 279780480.

The previous prime is 1110042403. The next prime is 1110042473. The reversal of 1110042420 is 242400111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1110042420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73041 + ... + 86919.

It is an arithmetic number, because the mean of its divisors is an integer number (34200320).

Almost surely, 2^1110042420 is an apocalyptic number.

1110042420 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 1110042420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641615360).

1110042420 is an abundant number, since it is smaller than the sum of its proper divisors (2173188300).

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

1110042420 is a wasteful number, since it uses less digits than its factorization.

1110042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965 (or 13963 counting only the distinct ones).

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

The square root of 1110042420 is about 33317.2991102220. The cubic root of 1110042420 is about 1035.4119949553.

Adding to 1110042420 its reverse (242400111), we get a palindrome (1352442531).

The spelling of 1110042420 in words is "one billion, one hundred ten million, forty-two thousand, four hundred twenty".