117709220 has 24 divisors (see below), whose sum is σ = 248225208. Its totient is φ = 46886400.

The previous prime is 117709219. The next prime is 117709253. The reversal of 117709220 is 22907711.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 117202276 = 712^2 + 10826^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 7391 + ... + 17030.

It is an arithmetic number, because the mean of its divisors is an integer number (10342717).

Almost surely, 2^117709220 is an apocalyptic number.

117709220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117709220 is an abundant number, since it is smaller than the sum of its proper divisors (130515988).

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

117709220 is a wasteful number, since it uses less digits than its factorization.

117709220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24671 (or 24669 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 117709220 is about 10849.3880011732. The cubic root of 117709220 is about 490.0835897934.

The spelling of 117709220 in words is "one hundred seventeen million, seven hundred nine thousand, two hundred twenty".