117842724 has 72 divisors (see below), whose sum is σ = 306528768. Its totient is φ = 38154240.

The previous prime is 117842717. The next prime is 117842729. The reversal of 117842724 is 427248711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (117842729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434709 + ... + 434979.

It is an arithmetic number, because the mean of its divisors is an integer number (4257344).

Almost surely, 2^117842724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117842724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153264384).

117842724 is an abundant number, since it is smaller than the sum of its proper divisors (188686044).

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

117842724 is a wasteful number, since it uses less digits than its factorization.

117842724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 580 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 117842724 is about 10855.5388627189. The cubic root of 117842724 is about 490.2688015643.

The spelling of 117842724 in words is "one hundred seventeen million, eight hundred forty-two thousand, seven hundred twenty-four".