194216474 has 4 divisors (see below), whose sum is σ = 291324714. Its totient is φ = 97108236.

The previous prime is 194216459. The next prime is 194216557. The reversal of 194216474 is 474612491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 192793225 + 1423249 = 13885^2 + 1193^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48554117 + ... + 48554120.

Almost surely, 2^194216474 is an apocalyptic number.

194216474 is a deficient number, since it is larger than the sum of its proper divisors (97108240).

194216474 is an equidigital number, since it uses as much as digits as its factorization.

194216474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97108239.

The product of its digits is 48384, while the sum is 38.

The square root of 194216474 is about 13936.1570743157. The cubic root of 194216474 is about 579.1112766539. Note that the first 3 decimals are identical.

The spelling of 194216474 in words is "one hundred ninety-four million, two hundred sixteen thousand, four hundred seventy-four".