20198044 has 6 divisors (see below), whose sum is σ = 35346584. Its totient is φ = 10099020.

The previous prime is 20198039. The next prime is 20198053. The reversal of 20198044 is 44089102.

It is a congruent number.

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, 2524752 + ... + 2524759.

Almost surely, 2^20198044 is an apocalyptic number.

It is an amenable number.

20198044 is a deficient number, since it is larger than the sum of its proper divisors (15148540).

20198044 is a wasteful number, since it uses less digits than its factorization.

20198044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049515 (or 5049513 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20198044 is about 4494.2234034369. The cubic root of 20198044 is about 272.3347773778.

The spelling of 20198044 in words is "twenty million, one hundred ninety-eight thousand, forty-four".