1115598398 has 8 divisors (see below), whose sum is σ = 1685612592. Its totient is φ = 553727536.

The previous prime is 1115598383. The next prime is 1115598401. The reversal of 1115598398 is 8938955111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035490 + ... + 2036037.

It is an arithmetic number, because the mean of its divisors is an integer number (210701574).

Almost surely, 2^1115598398 is an apocalyptic number.

1115598398 is a deficient number, since it is larger than the sum of its proper divisors (570014194).

1115598398 is a wasteful number, since it uses less digits than its factorization.

1115598398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071666.

The product of its digits is 388800, while the sum is 50.

The square root of 1115598398 is about 33400.5748154130. The cubic root of 1115598398 is about 1037.1366002266.

The spelling of 1115598398 in words is "one billion, one hundred fifteen million, five hundred ninety-eight thousand, three hundred ninety-eight".