20049698 has 16 divisors (see below), whose sum is σ = 33229440. Its totient is φ = 9024576.

The previous prime is 20049649. The next prime is 20049709. The reversal of 20049698 is 89694002.

It is an unprimeable number.

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, 12038 + ... + 13601.

It is an arithmetic number, because the mean of its divisors is an integer number (2076840).

Almost surely, 2^20049698 is an apocalyptic number.

20049698 is a deficient number, since it is larger than the sum of its proper divisors (13179742).

20049698 is a wasteful number, since it uses less digits than its factorization.

20049698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25681.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 20049698 is about 4477.6889128210. The cubic root of 20049698 is about 271.6664108963. Note that the first 3 decimals are identical.

The spelling of 20049698 in words is "twenty million, forty-nine thousand, six hundred ninety-eight".