117788740 has 24 divisors (see below), whose sum is σ = 249762240. Its totient is φ = 46657248.

The previous prime is 117788729. The next prime is 117788753. The reversal of 117788740 is 47887711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26530 + ... + 30649.

It is an arithmetic number, because the mean of its divisors is an integer number (10406760).

Almost surely, 2^117788740 is an apocalyptic number.

117788740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117788740 is an abundant number, since it is smaller than the sum of its proper divisors (131973500).

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

117788740 is a wasteful number, since it uses less digits than its factorization.

117788740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57291 (or 57289 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 43.

The square root of 117788740 is about 10853.0521052836. The cubic root of 117788740 is about 490.1939257395.

The spelling of 117788740 in words is "one hundred seventeen million, seven hundred eighty-eight thousand, seven hundred forty".