117722478 has 16 divisors (see below), whose sum is σ = 235996416. Its totient is φ = 39148920.

The previous prime is 117722471. The next prime is 117722483. The reversal of 117722478 is 874227711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117722471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20176 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (14749776).

Almost surely, 2^117722478 is an apocalyptic number.

117722478 is an abundant number, since it is smaller than the sum of its proper divisors (118273938).

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

117722478 is a wasteful number, since it uses less digits than its factorization.

117722478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45959.

The product of its digits is 43904, while the sum is 39.

The square root of 117722478 is about 10849.9989861751. The cubic root of 117722478 is about 490.1019890439.

The spelling of 117722478 in words is "one hundred seventeen million, seven hundred twenty-two thousand, four hundred seventy-eight".