20654198 has 8 divisors (see below), whose sum is σ = 31009392. Its totient is φ = 10317736.

The previous prime is 20654191. The next prime is 20654203. The reversal of 20654198 is 89145602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20654191) 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 3 ways as a sum of consecutive naturals, for example, 1490 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (3876174).

Almost surely, 2^20654198 is an apocalyptic number.

20654198 is a deficient number, since it is larger than the sum of its proper divisors (10355194).

20654198 is a wasteful number, since it uses less digits than its factorization.

20654198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 20654198 is about 4544.6889882587. The cubic root of 20654198 is about 274.3696770120.

The spelling of 20654198 in words is "twenty million, six hundred fifty-four thousand, one hundred ninety-eight".