1117819636 has 12 divisors (see below), whose sum is σ = 1959411328. Its totient is φ = 557987832.

The previous prime is 1117819627. The next prime is 1117819639. The reversal of 1117819636 is 6369187111.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1117819592 and 1117819601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117819639) 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, 227766 + ... + 232621.

Almost surely, 2^1117819636 is an apocalyptic number.

It is an amenable number.

1117819636 is a deficient number, since it is larger than the sum of its proper divisors (841591692).

1117819636 is a wasteful number, since it uses less digits than its factorization.

1117819636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460998 (or 460996 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 1117819636 is about 33433.8097739399. The cubic root of 1117819636 is about 1037.8244821615.

The spelling of 1117819636 in words is "one billion, one hundred seventeen million, eight hundred nineteen thousand, six hundred thirty-six".