1117894239 has 24 divisors (see below), whose sum is σ = 2013178752. Its totient is φ = 580723920.

The previous prime is 1117894213. The next prime is 1117894243. The reversal of 1117894239 is 9324987111.

It is not a de Polignac number, because 1117894239 - 2⁵ = 1117894207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1117894194 and 1117894203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117894339) 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, 805869 + ... + 807254.

It is an arithmetic number, because the mean of its divisors is an integer number (83882448).

Almost surely, 2^1117894239 is an apocalyptic number.

1117894239 is a deficient number, since it is larger than the sum of its proper divisors (895284513).

1117894239 is a wasteful number, since it uses less digits than its factorization.

1117894239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613147 (or 1613144 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1117894239 is about 33434.9254373327. The cubic root of 1117894239 is about 1037.8475696957.

The spelling of 1117894239 in words is "one billion, one hundred seventeen million, eight hundred ninety-four thousand, two hundred thirty-nine".