117787240 has 16 divisors (see below), whose sum is σ = 265021380. Its totient is φ = 47114880.

The previous prime is 117787231. The next prime is 117787261. The reversal of 117787240 is 42787711.

It can be written as a sum of positive squares in 2 ways, for example, as 106213636 + 11573604 = 10306^2 + 3402^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117787240.

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 3 ways as a sum of consecutive naturals, for example, 1472301 + ... + 1472380.

Almost surely, 2^117787240 is an apocalyptic number.

117787240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117787240 is an abundant number, since it is smaller than the sum of its proper divisors (147234140).

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

117787240 is a wasteful number, since it uses less digits than its factorization.

117787240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944692 (or 2944688 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 117787240 is about 10852.9830000788. The cubic root of 117787240 is about 490.1918449124.

The spelling of 117787240 in words is "one hundred seventeen million, seven hundred eighty-seven thousand, two hundred forty".