1113535440 has 120 divisors (see below), whose sum is σ = 3746197728. Its totient is φ = 296421120.

The previous prime is 1113535429. The next prime is 1113535447. The reversal of 1113535440 is 445353111.

It is a happy number.

1113535440 is a `hidden beast` number, since 1 + 113 + 5 + 3 + 544 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×1113535440³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113535447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582967 + ... + 584873.

Almost surely, 2^1113535440 is an apocalyptic number.

1113535440 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 1113535440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1873098864).

1113535440 is an abundant number, since it is smaller than the sum of its proper divisors (2632662288).

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

1113535440 is a wasteful number, since it uses less digits than its factorization.

1113535440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1113535440 is about 33369.6784521517. The cubic root of 1113535440 is about 1036.4969167966.

Adding to 1113535440 its reverse (445353111), we get a palindrome (1558888551).

The spelling of 1113535440 in words is "one billion, one hundred thirteen million, five hundred thirty-five thousand, four hundred forty".