198444694 has 16 divisors (see below), whose sum is σ = 341399808. Its totient is φ = 84745512.

The previous prime is 198444691. The next prime is 198444707. The reversal of 198444694 is 496444891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198444691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21082 + ... + 29005.

It is an arithmetic number, because the mean of its divisors is an integer number (21337488).

Almost surely, 2^198444694 is an apocalyptic number.

198444694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198444694 is a deficient number, since it is larger than the sum of its proper divisors (142955114).

198444694 is a wasteful number, since it uses less digits than its factorization.

198444694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50379.

The product of its digits is 995328, while the sum is 49.

The square root of 198444694 is about 14087.0399303757. The cubic root of 198444694 is about 583.2836869494.

The spelling of 198444694 in words is "one hundred ninety-eight million, four hundred forty-four thousand, six hundred ninety-four".