117117240 has 32 divisors (see below), whose sum is σ = 351352080. Its totient is φ = 31231232.

The previous prime is 117117223. The next prime is 117117289. The reversal of 117117240 is 42711711.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 117117240.

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, 487869 + ... + 488108.

Almost surely, 2^117117240 is an apocalyptic number.

117117240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117117240 is an abundant number, since it is smaller than the sum of its proper divisors (234234840).

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

117117240 is a wasteful number, since it uses less digits than its factorization.

117117240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975991 (or 975987 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 117117240 is about 10822.0718903545. The cubic root of 117117240 is about 489.2606369810.

Adding to 117117240 its reverse (42711711), we get a palindrome (159828951).

The spelling of 117117240 in words is "one hundred seventeen million, one hundred seventeen thousand, two hundred forty".