117742230 has 24 divisors (see below), whose sum is σ = 306130032. Its totient is φ = 31397904.

The previous prime is 117742199. The next prime is 117742231. The reversal of 117742230 is 32247711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 117742194 and 117742203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117742231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654034 + ... + 654213.

It is an arithmetic number, because the mean of its divisors is an integer number (12755418).

Almost surely, 2^117742230 is an apocalyptic number.

117742230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117742230 is an abundant number, since it is smaller than the sum of its proper divisors (188387802).

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

117742230 is a wasteful number, since it uses less digits than its factorization.

117742230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308260 (or 1308257 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 117742230 is about 10850.9091784974. The cubic root of 117742230 is about 490.1293980069.

Adding to 117742230 its reverse (32247711), we get a palindrome (149989941).

The spelling of 117742230 in words is "one hundred seventeen million, seven hundred forty-two thousand, two hundred thirty".