1115743680 has 448 divisors, whose sum is σ = 4195267200. Its totient is φ = 278691840.

The previous prime is 1115743679. The next prime is 1115743703. The reversal of 1115743680 is 863475111.

1115743680 is a `hidden beast` number, since 1 + 1 + 1 + 574 + 3 + 6 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15284124 + ... + 15284196.

Almost surely, 2^1115743680 is an apocalyptic number.

1115743680 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 1115743680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2097633600).

1115743680 is an abundant number, since it is smaller than the sum of its proper divisors (3079523520).

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

1115743680 is a wasteful number, since it uses less digits than its factorization.

1115743680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1115743680 is about 33402.7495874217. The cubic root of 1115743680 is about 1037.1816196349.

The spelling of 1115743680 in words is "one billion, one hundred fifteen million, seven hundred forty-three thousand, six hundred eighty".