1115740288 has 32 divisors (see below), whose sum is σ = 2393749260. Its totient is φ = 514956288.

The previous prime is 1115740279. The next prime is 1115740289. The reversal of 1115740288 is 8820475111.

It can be written as a sum of positive squares in 2 ways, for example, as 1107025984 + 8714304 = 33272^2 + 2952^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1115740289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333595 + ... + 336922.

Almost surely, 2^1115740288 is an apocalyptic number.

It is an amenable number.

1115740288 is an abundant number, since it is smaller than the sum of its proper divisors (1278008972).

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

1115740288 is an equidigital number, since it uses as much as digits as its factorization.

1115740288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670544 (or 670532 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 1115740288 is about 33402.6988131199. The cubic root of 1115740288 is about 1037.1805685800.

The spelling of 1115740288 in words is "one billion, one hundred fifteen million, seven hundred forty thousand, two hundred eighty-eight".