117957442 has 32 divisors (see below), whose sum is σ = 187790400. Its totient is φ = 55489728.

The previous prime is 117957439. The next prime is 117957457. The reversal of 117957442 is 244759711.

It is a junction number, because it is equal to n+sod(n) for n = 117957395 and 117957404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514984 + ... + 515212.

It is an arithmetic number, because the mean of its divisors is an integer number (5868450).

Almost surely, 2^117957442 is an apocalyptic number.

117957442 is a deficient number, since it is larger than the sum of its proper divisors (69832958).

117957442 is a wasteful number, since it uses less digits than its factorization.

117957442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450.

The product of its digits is 70560, while the sum is 40.

The square root of 117957442 is about 10860.8214238151. The cubic root of 117957442 is about 490.4278395711.

The spelling of 117957442 in words is "one hundred seventeen million, nine hundred fifty-seven thousand, four hundred forty-two".