1115893800 has 384 divisors, whose sum is σ = 4483641600. Its totient is φ = 249799680.

The previous prime is 1115893799. The next prime is 1115893811. The reversal of 1115893800 is 83985111.

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 95 ways as a sum of consecutive naturals, for example, 2003122 + ... + 2003678.

It is an arithmetic number, because the mean of its divisors is an integer number (11676150).

Almost surely, 2^1115893800 is an apocalyptic number.

1115893800 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 1115893800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241820800).

1115893800 is an abundant number, since it is smaller than the sum of its proper divisors (3367747800).

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

1115893800 is a wasteful number, since it uses less digits than its factorization.

1115893800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1115893800 is about 33404.9966322405. The cubic root of 1115893800 is about 1037.2281341182.

The spelling of 1115893800 in words is "one billion, one hundred fifteen million, eight hundred ninety-three thousand, eight hundred".