194740198 has 4 divisors (see below), whose sum is σ = 292110300. Its totient is φ = 97370098.

The previous prime is 194740193. The next prime is 194740199. The reversal of 194740198 is 891047491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891047491 = 2591 ⋅343901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194740193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48685048 + ... + 48685051.

It is an arithmetic number, because the mean of its divisors is an integer number (73027575).

Almost surely, 2^194740198 is an apocalyptic number.

194740198 is a deficient number, since it is larger than the sum of its proper divisors (97370102).

194740198 is an equidigital number, since it uses as much as digits as its factorization.

194740198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97370101.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 194740198 is about 13954.9345394380. The cubic root of 194740198 is about 579.6313531344.

The spelling of 194740198 in words is "one hundred ninety-four million, seven hundred forty thousand, one hundred ninety-eight".