117827442 has 24 divisors (see below), whose sum is σ = 270310716. Its totient is φ = 36965376.

The previous prime is 117827441. The next prime is 117827447. The reversal of 117827442 is 244728711.

It can be written as a sum of positive squares in 2 ways, for example, as 114511401 + 3316041 = 10701^2 + 1821^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117827397 and 117827406.

It is not an unprimeable number, because it can be changed into a prime (117827441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192223 + ... + 192834.

Almost surely, 2^117827442 is an apocalyptic number.

117827442 is an abundant number, since it is smaller than the sum of its proper divisors (152483274).

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

117827442 is a wasteful number, since it uses less digits than its factorization.

117827442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385082 (or 385079 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 117827442 is about 10854.8349595929. The cubic root of 117827442 is about 490.2476077464.

The spelling of 117827442 in words is "one hundred seventeen million, eight hundred twenty-seven thousand, four hundred forty-two".