117866040 has 32 divisors (see below), whose sum is σ = 353598480. Its totient is φ = 31430912.

The previous prime is 117866039. The next prime is 117866041. The reversal of 117866040 is 40668711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117866039) and next prime (117866041).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 117865992 and 117866010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117866041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490989 + ... + 491228.

Almost surely, 2^117866040 is an apocalyptic number.

117866040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117866040 is an abundant number, since it is smaller than the sum of its proper divisors (235732440).

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

117866040 is a wasteful number, since it uses less digits than its factorization.

117866040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982231 (or 982227 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 117866040 is about 10856.6127314186. The cubic root of 117866040 is about 490.3011337926.

The spelling of 117866040 in words is "one hundred seventeen million, eight hundred sixty-six thousand, forty".