194198398 has 4 divisors (see below), whose sum is σ = 291297600. Its totient is φ = 97099198.

The previous prime is 194198393. The next prime is 194198401. The reversal of 194198398 is 893891491.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194198393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48549598 + ... + 48549601.

It is an arithmetic number, because the mean of its divisors is an integer number (72824400).

Almost surely, 2^194198398 is an apocalyptic number.

194198398 is a deficient number, since it is larger than the sum of its proper divisors (97099202).

194198398 is an equidigital number, since it uses as much as digits as its factorization.

194198398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97099201.

The product of its digits is 559872, while the sum is 52.

The square root of 194198398 is about 13935.5085303695. The cubic root of 194198398 is about 579.0933098632.

The spelling of 194198398 in words is "one hundred ninety-four million, one hundred ninety-eight thousand, three hundred ninety-eight".