1120403440 has 40 divisors (see below), whose sum is σ = 2805320448. Its totient is φ = 413687040.

The previous prime is 1120403363. The next prime is 1120403441. The reversal of 1120403440 is 443040211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120403441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537616 + ... + 539695.

Almost surely, 2^1120403440 is an apocalyptic number.

1120403440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120403440 is an abundant number, since it is smaller than the sum of its proper divisors (1684917008).

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

1120403440 is a wasteful number, since it uses less digits than its factorization.

1120403440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077337 (or 1077331 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1120403440 is about 33472.4280565363. The cubic root of 1120403440 is about 1038.6234994380.

Adding to 1120403440 its reverse (443040211), we get a palindrome (1563443651).

The spelling of 1120403440 in words is "one billion, one hundred twenty million, four hundred three thousand, four hundred forty".