194205140 has 24 divisors (see below), whose sum is σ = 408145920. Its totient is φ = 77622048.

The previous prime is 194205133. The next prime is 194205181. The reversal of 194205140 is 41502491.

It is a congruent 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, 30341 + ... + 36179.

It is an arithmetic number, because the mean of its divisors is an integer number (17006080).

Almost surely, 2^194205140 is an apocalyptic number.

194205140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194205140 is an abundant number, since it is smaller than the sum of its proper divisors (213940780).

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

194205140 is a wasteful number, since it uses less digits than its factorization.

194205140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511 (or 7509 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 194205140 is about 13935.7504283049. The cubic root of 194205140 is about 579.1000112606.

The spelling of 194205140 in words is "one hundred ninety-four million, two hundred five thousand, one hundred forty".