2109454198 has 16 divisors (see below), whose sum is σ = 3189773520. Its totient is φ = 1046219616.

The previous prime is 2109454169. The next prime is 2109454211. The reversal of 2109454198 is 8914549012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188940 + ... + 199792.

It is an arithmetic number, because the mean of its divisors is an integer number (199360845).

Almost surely, 2^2109454198 is an apocalyptic number.

2109454198 is a deficient number, since it is larger than the sum of its proper divisors (1080319322).

2109454198 is a wasteful number, since it uses less digits than its factorization.

2109454198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11631.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 2109454198 is about 45928.7948677080. The cubic root of 2109454198 is about 1282.4980103755.

The spelling of 2109454198 in words is "two billion, one hundred nine million, four hundred fifty-four thousand, one hundred ninety-eight".