117731424 has 48 divisors (see below), whose sum is σ = 310286592. Its totient is φ = 39086208.

The previous prime is 117731399. The next prime is 117731437. The reversal of 117731424 is 424137711.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 117731391 and 117731400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22917 + ... + 27579.

It is an arithmetic number, because the mean of its divisors is an integer number (6464304).

Almost surely, 2^117731424 is an apocalyptic number.

It is an amenable number.

117731424 is an abundant number, since it is smaller than the sum of its proper divisors (192555168).

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

117731424 is a wasteful number, since it uses less digits than its factorization.

117731424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939 (or 4931 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 117731424 is about 10850.4112364463. The cubic root of 117731424 is about 490.1144033860.

The spelling of 117731424 in words is "one hundred seventeen million, seven hundred thirty-one thousand, four hundred twenty-four".