1117042236 has 18 divisors (see below), whose sum is σ = 2823634632. Its totient is φ = 372347400.

The previous prime is 1117042211. The next prime is 1117042237. The reversal of 1117042236 is 6322407111.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117042237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15514440 + ... + 15514511.

Almost surely, 2^1117042236 is an apocalyptic number.

It is an amenable number.

1117042236 is an abundant number, since it is smaller than the sum of its proper divisors (1706592396).

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

1117042236 is a wasteful number, since it uses less digits than its factorization.

1117042236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028961 (or 31028956 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1117042236 is about 33422.1817959271. The cubic root of 1117042236 is about 1037.5838375373.

Adding to 1117042236 its reverse (6322407111), we get a palindrome (7439449347).

The spelling of 1117042236 in words is "one billion, one hundred seventeen million, forty-two thousand, two hundred thirty-six".