117279438 has 32 divisors (see below), whose sum is σ = 257644800. Its totient is φ = 35424576.

The previous prime is 117279431. The next prime is 117279439. The reversal of 117279438 is 834972711.

It is a self number, because there is not a number n which added to its sum of digits gives 117279438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117279431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19743 + ... + 24986.

It is an arithmetic number, because the mean of its divisors is an integer number (8051400).

Almost surely, 2^117279438 is an apocalyptic number.

117279438 is an abundant number, since it is smaller than the sum of its proper divisors (140365362).

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

117279438 is a wasteful number, since it uses less digits than its factorization.

117279438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44776.

The product of its digits is 84672, while the sum is 42.

The square root of 117279438 is about 10829.5631490841. The cubic root of 117279438 is about 489.4863950634.

The spelling of 117279438 in words is "one hundred seventeen million, two hundred seventy-nine thousand, four hundred thirty-eight".