194689474 has 24 divisors (see below), whose sum is σ = 354548160. Its totient is φ = 78528576.

The previous prime is 194689459. The next prime is 194689541. The reversal of 194689474 is 474986491.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20014 + ... + 28105.

It is an arithmetic number, because the mean of its divisors is an integer number (14772840).

Almost surely, 2^194689474 is an apocalyptic number.

194689474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

194689474 is a deficient number, since it is larger than the sum of its proper divisors (159858686).

194689474 is a wasteful number, since it uses less digits than its factorization.

194689474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48162 (or 48145 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 194689474 is about 13953.1169994378. The cubic root of 194689474 is about 579.5810232177.

The spelling of 194689474 in words is "one hundred ninety-four million, six hundred eighty-nine thousand, four hundred seventy-four".