1113612440 has 32 divisors (see below), whose sum is σ = 2537352000. Its totient is φ = 439805184.

The previous prime is 1113612431. The next prime is 1113612443. The reversal of 1113612440 is 442163111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113612443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173045 + ... + 179364.

It is an arithmetic number, because the mean of its divisors is an integer number (79292250).

Almost surely, 2^1113612440 is an apocalyptic number.

1113612440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113612440 is an abundant number, since it is smaller than the sum of its proper divisors (1423739560).

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

1113612440 is a wasteful number, since it uses less digits than its factorization.

1113612440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352499 (or 352495 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1113612440 is about 33370.8321742206. The cubic root of 1113612440 is about 1036.5208071971.

Adding to 1113612440 its reverse (442163111), we get a palindrome (1555775551).

The spelling of 1113612440 in words is "one billion, one hundred thirteen million, six hundred twelve thousand, four hundred forty".