1117978036 has 24 divisors (see below), whose sum is σ = 2239534976. Its totient is φ = 478366560.

The previous prime is 1117978007. The next prime is 1117978061. The reversal of 1117978036 is 6308797111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1117977983 and 1117978001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13971 + ... + 49306.

Almost surely, 2^1117978036 is an apocalyptic number.

It is an amenable number.

1117978036 is an abundant number, since it is smaller than the sum of its proper divisors (1121556940).

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

1117978036 is a wasteful number, since it uses less digits than its factorization.

1117978036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63919 (or 63917 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 1117978036 is about 33436.1785495891. The cubic root of 1117978036 is about 1037.8735012901.

The spelling of 1117978036 in words is "one billion, one hundred seventeen million, nine hundred seventy-eight thousand, thirty-six".