194117740 has 12 divisors (see below), whose sum is σ = 407647296. Its totient is φ = 77647088.

The previous prime is 194117717. The next prime is 194117741. The reversal of 194117740 is 47711491.

It is a junction number, because it is equal to n+sod(n) for n = 194117696 and 194117705.

It is not an unprimeable number, because it can be changed into a prime (194117741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4852924 + ... + 4852963.

It is an arithmetic number, because the mean of its divisors is an integer number (33970608).

Almost surely, 2^194117740 is an apocalyptic number.

194117740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194117740 is an abundant number, since it is smaller than the sum of its proper divisors (213529556).

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

194117740 is a wasteful number, since it uses less digits than its factorization.

194117740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705896 (or 9705894 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 194117740 is about 13932.6142557669. The cubic root of 194117740 is about 579.0131255830.

The spelling of 194117740 in words is "one hundred ninety-four million, one hundred seventeen thousand, seven hundred forty".