398324194 has 4 divisors (see below), whose sum is σ = 597486294. Its totient is φ = 199162096.

The previous prime is 398324159. The next prime is 398324207. The reversal of 398324194 is 491423893.

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., 307827025 + 90497169 = 17545^2 + 9513^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 398324194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99581047 + ... + 99581050.

Almost surely, 2^398324194 is an apocalyptic number.

398324194 is a deficient number, since it is larger than the sum of its proper divisors (199162100).

398324194 is a wasteful number, since it uses less digits than its factorization.

398324194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199162099.

The product of its digits is 186624, while the sum is 43.

The square root of 398324194 is about 19958.0608777506. The cubic root of 398324194 is about 735.7759057537.

The spelling of 398324194 in words is "three hundred ninety-eight million, three hundred twenty-four thousand, one hundred ninety-four".