1113591960 has 384 divisors, whose sum is σ = 4108104000. Its totient is φ = 259780608.

The previous prime is 1113591949. The next prime is 1113591961. The reversal of 1113591960 is 691953111.

It is a happy number.

1113591960 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 591 + 9 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113591961) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10216386 + ... + 10216494.

Almost surely, 2^1113591960 is an apocalyptic number.

1113591960 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 1113591960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2054052000).

1113591960 is an abundant number, since it is smaller than the sum of its proper divisors (2994512040).

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

1113591960 is a wasteful number, since it uses less digits than its factorization.

1113591960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 1113591960 is about 33370.5253180108. The cubic root of 1113591960 is about 1036.5144530786.

The spelling of 1113591960 in words is "one billion, one hundred thirteen million, five hundred ninety-one thousand, nine hundred sixty".