2198487194 has 8 divisors (see below), whose sum is σ = 3298434048. Its totient is φ = 1099009180.

The previous prime is 2198487191. The next prime is 2198487217. The reversal of 2198487194 is 4917848912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2198487191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105242 + ... + 124389.

It is an arithmetic number, because the mean of its divisors is an integer number (412304256).

Almost surely, 2^2198487194 is an apocalyptic number.

2198487194 is a deficient number, since it is larger than the sum of its proper divisors (1099946854).

2198487194 is a wasteful number, since it uses less digits than its factorization.

2198487194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234420.

The product of its digits is 1161216, while the sum is 53.

The square root of 2198487194 is about 46888.0282588210. The cubic root of 2198487194 is about 1300.2932659873.

The spelling of 2198487194 in words is "two billion, one hundred ninety-eight million, four hundred eighty-seven thousand, one hundred ninety-four".