1115598738 has 32 divisors (see below), whose sum is σ = 2311646400. Its totient is φ = 358497216.

The previous prime is 1115598733. The next prime is 1115598761. The reversal of 1115598738 is 8378955111.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1115598733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118845 + ... + 127887.

It is an arithmetic number, because the mean of its divisors is an integer number (72238950).

Almost surely, 2^1115598738 is an apocalyptic number.

1115598738 is an abundant number, since it is smaller than the sum of its proper divisors (1196047662).

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

1115598738 is a wasteful number, since it uses less digits than its factorization.

1115598738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9786.

The product of its digits is 302400, while the sum is 48.

The square root of 1115598738 is about 33400.5799051454. The cubic root of 1115598738 is about 1037.1367055891.

The spelling of 1115598738 in words is "one billion, one hundred fifteen million, five hundred ninety-eight thousand, seven hundred thirty-eight".