20930198 has 8 divisors (see below), whose sum is σ = 31910160. Its totient is φ = 10293480.

The previous prime is 20930183. The next prime is 20930201. The reversal of 20930198 is 89103902.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85658 + ... + 85901.

It is an arithmetic number, because the mean of its divisors is an integer number (3988770).

Almost surely, 2^20930198 is an apocalyptic number.

20930198 is a deficient number, since it is larger than the sum of its proper divisors (10979962).

20930198 is a wasteful number, since it uses less digits than its factorization.

20930198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171622.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 20930198 is about 4574.9533330953. The cubic root of 20930198 is about 275.5863982873.

The spelling of 20930198 in words is "twenty million, nine hundred thirty thousand, one hundred ninety-eight".