4001810198 has 4 divisors (see below), whose sum is σ = 6002715300. Its totient is φ = 2000905098.

The previous prime is 4001810173. The next prime is 4001810249. The reversal of 4001810198 is 8910181004.

It is a semiprime because it is the product of two primes.

It is a congruent 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, 1000452548 + ... + 1000452551.

It is an arithmetic number, because the mean of its divisors is an integer number (1500678825).

Almost surely, 2^4001810198 is an apocalyptic number.

4001810198 is a deficient number, since it is larger than the sum of its proper divisors (2000905102).

4001810198 is a wasteful number, since it uses less digits than its factorization.

4001810198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000905101.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 4001810198 is about 63259.8624563791. The cubic root of 4001810198 is about 1587.6404750390.

The spelling of 4001810198 in words is "four billion, one million, eight hundred ten thousand, one hundred ninety-eight".