117730540 has 48 divisors (see below), whose sum is σ = 252201600. Its totient is φ = 46156032.

The previous prime is 117730513. The next prime is 117730541. The reversal of 117730540 is 45037711.

It is a junction number, because it is equal to n+sod(n) for n = 117730499 and 117730508.

It is not an unprimeable number, because it can be changed into a prime (117730541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424882 + ... + 425158.

It is an arithmetic number, because the mean of its divisors is an integer number (5254200).

Almost surely, 2^117730540 is an apocalyptic number.

117730540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117730540 is an abundant number, since it is smaller than the sum of its proper divisors (134471060).

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

117730540 is a wasteful number, since it uses less digits than its factorization.

117730540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 117730540 is about 10850.3705005866. The cubic root of 117730540 is about 490.1131766894.

It can be divided in two parts, 1177305 and 40, that added together give a triangular number (1177345 = T₁₅₃₄).

The spelling of 117730540 in words is "one hundred seventeen million, seven hundred thirty thousand, five hundred forty".