117289830 has 96 divisors (see below), whose sum is σ = 332243424. Its totient is φ = 26417664.

The previous prime is 117289813. The next prime is 117289841. The reversal of 117289830 is 38982711.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106764 + ... + 107856.

It is an arithmetic number, because the mean of its divisors is an integer number (3460869).

Almost surely, 2^117289830 is an apocalyptic number.

117289830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117289830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166121712).

117289830 is an abundant number, since it is smaller than the sum of its proper divisors (214953594).

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

117289830 is a wasteful number, since it uses less digits than its factorization.

117289830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 117289830 is about 10830.0429362030. The cubic root of 117289830 is about 489.5008522506.

The spelling of 117289830 in words is "one hundred seventeen million, two hundred eighty-nine thousand, eight hundred thirty".