2098185394 has 4 divisors (see below), whose sum is σ = 3147278094. Its totient is φ = 1049092696.

The previous prime is 2098185377. The next prime is 2098185433. The reversal of 2098185394 is 4935818902.

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., 1579029169 + 519156225 = 39737^2 + 22785^2 .

It is a Smith number, since the sum of its digits (49) 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, 524546347 + ... + 524546350.

Almost surely, 2^2098185394 is an apocalyptic number.

2098185394 is a deficient number, since it is larger than the sum of its proper divisors (1049092700).

2098185394 is a wasteful number, since it uses less digits than its factorization.

2098185394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049092699.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 2098185394 is about 45805.9536959990. The cubic root of 2098185394 is about 1280.2102100236.

The spelling of 2098185394 in words is "two billion, ninety-eight million, one hundred eighty-five thousand, three hundred ninety-four".