1115432240 has 120 divisors (see below), whose sum is σ = 2948592528. Its totient is φ = 390044160.

The previous prime is 1115432233. The next prime is 1115432243. The reversal of 1115432240 is 422345111.

It is not an unprimeable number, because it can be changed into a prime (1115432243) 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, 373955 + ... + 376925.

Almost surely, 2^1115432240 is an apocalyptic number.

1115432240 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 1115432240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474296264).

1115432240 is an abundant number, since it is smaller than the sum of its proper divisors (1833160288).

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

1115432240 is a wasteful number, since it uses less digits than its factorization.

1115432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035 (or 3010 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1115432240 is about 33398.0873703869. The cubic root of 1115432240 is about 1037.0851070550.

Adding to 1115432240 its reverse (422345111), we get a palindrome (1537777351).

The spelling of 1115432240 in words is "one billion, one hundred fifteen million, four hundred thirty-two thousand, two hundred forty".