20682398 has 16 divisors (see below), whose sum is σ = 34632576. Its totient is φ = 9182040.

The previous prime is 20682373. The next prime is 20682407. The reversal of 20682398 is 89328602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9986 + ... + 11877.

It is an arithmetic number, because the mean of its divisors is an integer number (2164536).

Almost surely, 2^20682398 is an apocalyptic number.

20682398 is a deficient number, since it is larger than the sum of its proper divisors (13950178).

20682398 is a wasteful number, since it uses less digits than its factorization.

20682398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21919.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 20682398 is about 4547.7904525165. The cubic root of 20682398 is about 274.4944895117.

The spelling of 20682398 in words is "twenty million, six hundred eighty-two thousand, three hundred ninety-eight".