117030240 has 144 divisors (see below), whose sum is σ = 405660528. Its totient is φ = 30716928.

The previous prime is 117030229. The next prime is 117030259. The reversal of 117030240 is 42030711.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95874 + ... + 97086.

It is an arithmetic number, because the mean of its divisors is an integer number (2817087).

Almost surely, 2^117030240 is an apocalyptic number.

117030240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202830264).

117030240 is an abundant number, since it is smaller than the sum of its proper divisors (288630288).

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

117030240 is a wasteful number, since it uses less digits than its factorization.

117030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 117030240 is about 10818.0515805759. The cubic root of 117030240 is about 489.1394586367.

Adding to 117030240 its reverse (42030711), we get a palindrome (159060951).

The spelling of 117030240 in words is "one hundred seventeen million, thirty thousand, two hundred forty".