2198946458 has 4 divisors (see below), whose sum is σ = 3298419690. Its totient is φ = 1099473228.

The previous prime is 2198946403. The next prime is 2198946479. The reversal of 2198946458 is 8546498912.

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., 1382872969 + 816073489 = 37187^2 + 28567^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549736613 + ... + 549736616.

Almost surely, 2^2198946458 is an apocalyptic number.

2198946458 is a deficient number, since it is larger than the sum of its proper divisors (1099473232).

2198946458 is a wasteful number, since it uses less digits than its factorization.

2198946458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099473231.

The product of its digits is 4976640, while the sum is 56.

The square root of 2198946458 is about 46892.9254578982. The cubic root of 2198946458 is about 1300.3838034425.

The spelling of 2198946458 in words is "two billion, one hundred ninety-eight million, nine hundred forty-six thousand, four hundred fifty-eight".