117339840 has 196 divisors, whose sum is σ = 419764464. Its totient is φ = 31228416.

The previous prime is 117339823. The next prime is 117339851. The reversal of 117339840 is 48933711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 117339795 and 117339804.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 233029 + ... + 233531.

Almost surely, 2^117339840 is an apocalyptic number.

117339840 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 117339840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209882232).

117339840 is an abundant number, since it is smaller than the sum of its proper divisors (302424624).

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

117339840 is an frugal number, since it uses more digits than its factorization.

117339840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 117339840 is about 10832.3515452555. The cubic root of 117339840 is about 489.5704134370.

The spelling of 117339840 in words is "one hundred seventeen million, three hundred thirty-nine thousand, eight hundred forty".