1120503440 has 80 divisors (see below), whose sum is σ = 2982451968. Its totient is φ = 383513088.

The previous prime is 1120503437. The next prime is 1120503451. The reversal of 1120503440 is 443050211.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 414734 + ... + 417426.

Almost surely, 2^1120503440 is an apocalyptic number.

1120503440 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 1120503440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1491225984).

1120503440 is an abundant number, since it is smaller than the sum of its proper divisors (1861948528).

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

1120503440 is a wasteful number, since it uses less digits than its factorization.

1120503440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3456 (or 3450 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1120503440 is about 33473.9217899546. The cubic root of 1120503440 is about 1038.6543988016.

Adding to 1120503440 its reverse (443050211), we get a palindrome (1563553651).

The spelling of 1120503440 in words is "one billion, one hundred twenty million, five hundred three thousand, four hundred forty".