1115333440 has 224 divisors, whose sum is σ = 3062142720. Its totient is φ = 383533056.

The previous prime is 1115333437. The next prime is 1115333447. The reversal of 1115333440 is 443335111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115333447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8141052 + ... + 8141188.

It is an arithmetic number, because the mean of its divisors is an integer number (13670280).

Almost surely, 2^1115333440 is an apocalyptic number.

1115333440 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 1115333440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531071360).

1115333440 is an abundant number, since it is smaller than the sum of its proper divisors (1946809280).

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

1115333440 is a wasteful number, since it uses less digits than its factorization.

1115333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1115333440 is about 33396.6082110145. The cubic root of 1115333440 is about 1037.0544860304.

Adding to 1115333440 its reverse (443335111), we get a palindrome (1558668551).

The spelling of 1115333440 in words is "one billion, one hundred fifteen million, three hundred thirty-three thousand, four hundred forty".