1110243440 has 20 divisors (see below), whose sum is σ = 2581316184. Its totient is φ = 444097344.

The previous prime is 1110243413. The next prime is 1110243461. The reversal of 1110243440 is 443420111.

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6938942 + ... + 6939101.

Almost surely, 2^1110243440 is an apocalyptic number.

1110243440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110243440 is an abundant number, since it is smaller than the sum of its proper divisors (1471072744).

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

1110243440 is a wasteful number, since it uses less digits than its factorization.

1110243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13878056 (or 13878050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1110243440 is about 33320.3157247947. The cubic root of 1110243440 is about 1035.4744928540.

Adding to 1110243440 its reverse (443420111), we get a palindrome (1553663551).

The spelling of 1110243440 in words is "one billion, one hundred ten million, two hundred forty-three thousand, four hundred forty".