117208740 has 48 divisors (see below), whose sum is σ = 358021440. Its totient is φ = 28414080.

The previous prime is 117208733. The next prime is 117208769. The reversal of 117208740 is 47802711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 117208698 and 117208707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88135 + ... + 89454.

It is an arithmetic number, because the mean of its divisors is an integer number (7458780).

Almost surely, 2^117208740 is an apocalyptic number.

117208740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117208740 is an abundant number, since it is smaller than the sum of its proper divisors (240812700).

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

117208740 is a wasteful number, since it uses less digits than its factorization.

117208740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177612 (or 177610 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 117208740 is about 10826.2985364343. The cubic root of 117208740 is about 489.3880184405.

The spelling of 117208740 in words is "one hundred seventeen million, two hundred eight thousand, seven hundred forty".