20862198 has 40 divisors (see below), whose sum is σ = 53427792. Its totient is φ = 5960304.

The previous prime is 20862197. The next prime is 20862211. The reversal of 20862198 is 89126802.

20862198 is a `hidden beast` number, since 20 + 8 + 621 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20862197) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8065 + ... + 10332.

Almost surely, 2^20862198 is an apocalyptic number.

20862198 is an abundant number, since it is smaller than the sum of its proper divisors (32565594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20862198 is a wasteful number, since it uses less digits than its factorization.

20862198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18418 (or 18409 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 20862198 is about 4567.5155172150. The cubic root of 20862198 is about 275.2876241362.

The spelling of 20862198 in words is "twenty million, eight hundred sixty-two thousand, one hundred ninety-eight".