2198446091 has 8 divisors (see below), whose sum is σ = 2326942800. Its totient is φ = 2071228320.

The previous prime is 2198446087. The next prime is 2198446147. The reversal of 2198446091 is 1906448912.

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

It is a cyclic number.

It is not a de Polignac number, because 2198446091 - 2² = 2198446087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2198446021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316196 + ... + 323073.

It is an arithmetic number, because the mean of its divisors is an integer number (290867850).

Almost surely, 2^2198446091 is an apocalyptic number.

2198446091 is a deficient number, since it is larger than the sum of its proper divisors (128496709).

2198446091 is a wasteful number, since it uses less digits than its factorization.

2198446091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639469.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2198446091 is about 46887.5899465946. The cubic root of 2198446091 is about 1300.2851624927.

The spelling of 2198446091 in words is "two billion, one hundred ninety-eight million, four hundred forty-six thousand, ninety-one".