117852840 has 384 divisors, whose sum is σ = 487555200. Its totient is φ = 25159680.

The previous prime is 117852817. The next prime is 117852883. The reversal of 117852840 is 48258711.

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 = 117852795 and 117852804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 899575 + ... + 899705.

It is an arithmetic number, because the mean of its divisors is an integer number (1269675).

Almost surely, 2^117852840 is an apocalyptic number.

117852840 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 117852840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243777600).

117852840 is an abundant number, since it is smaller than the sum of its proper divisors (369702360).

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

117852840 is a wasteful number, since it uses less digits than its factorization.

117852840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 117852840 is about 10856.0047899768. The cubic root of 117852840 is about 490.2828299153.

The spelling of 117852840 in words is "one hundred seventeen million, eight hundred fifty-two thousand, eight hundred forty".