2398400194 has 4 divisors (see below), whose sum is σ = 3597600294. Its totient is φ = 1199200096.

The previous prime is 2398400183. The next prime is 2398400231. The reversal of 2398400194 is 4910048932.

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., 2092605025 + 305795169 = 45745^2 + 17487^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599600047 + ... + 599600050.

Almost surely, 2^2398400194 is an apocalyptic number.

2398400194 is a deficient number, since it is larger than the sum of its proper divisors (1199200100).

2398400194 is a wasteful number, since it uses less digits than its factorization.

2398400194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199200099.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2398400194 is about 48973.4641821466. The cubic root of 2398400194 is about 1338.5683443585.

The spelling of 2398400194 in words is "two billion, three hundred ninety-eight million, four hundred thousand, one hundred ninety-four".