2198195458 has 16 divisors (see below), whose sum is σ = 3385172736. Its totient is φ = 1070121520.

The previous prime is 2198195423. The next prime is 2198195459. The reversal of 2198195458 is 8545918912.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2198195459) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 65266 + ... + 93037.

It is an arithmetic number, because the mean of its divisors is an integer number (211573296).

Almost surely, 2^2198195458 is an apocalyptic number.

2198195458 is a deficient number, since it is larger than the sum of its proper divisors (1186977278).

2198195458 is a wasteful number, since it uses less digits than its factorization.

2198195458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158489.

The product of its digits is 1036800, while the sum is 52.

The square root of 2198195458 is about 46884.9171695973. The cubic root of 2198195458 is about 1300.2357477784.

The spelling of 2198195458 in words is "two billion, one hundred ninety-eight million, one hundred ninety-five thousand, four hundred fifty-eight".