117909426 has 8 divisors (see below), whose sum is σ = 235818864. Its totient is φ = 39303140.

The previous prime is 117909419. The next prime is 117909437. The reversal of 117909426 is 624909711.

It is a sphenic number, since it is the product of 3 distinct primes.

117909426 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9825780 + ... + 9825791.

It is an arithmetic number, because the mean of its divisors is an integer number (29477358).

Almost surely, 2^117909426 is an apocalyptic number.

117909426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

117909426 is a wasteful number, since it uses less digits than its factorization.

117909426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651576.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 117909426 is about 10858.6106846134. The cubic root of 117909426 is about 490.3612856833.

The spelling of 117909426 in words is "one hundred seventeen million, nine hundred nine thousand, four hundred twenty-six".