117979442 has 8 divisors (see below), whose sum is σ = 202250496. Its totient is φ = 50562612.

The previous prime is 117979423. The next prime is 117979457. The reversal of 117979442 is 244979711.

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

It is a junction number, because it is equal to n+sod(n) for n = 117979393 and 117979402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4213538 + ... + 4213565.

It is an arithmetic number, because the mean of its divisors is an integer number (25281312).

Almost surely, 2^117979442 is an apocalyptic number.

117979442 is a deficient number, since it is larger than the sum of its proper divisors (84271054).

117979442 is an equidigital number, since it uses as much as digits as its factorization.

117979442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8427112.

The product of its digits is 127008, while the sum is 44.

The square root of 117979442 is about 10861.8341913325. The cubic root of 117979442 is about 490.4583272384.

The spelling of 117979442 in words is "one hundred seventeen million, nine hundred seventy-nine thousand, four hundred forty-two".