20682998 has 12 divisors (see below), whose sum is σ = 36089892. Its totient is φ = 8864100.

The previous prime is 20682989. The next prime is 20683007. The reversal of 20682998 is 89928602.

It is an interprime number because it is at equal distance from previous prime (20682989) and next prime (20683007).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105428 + ... + 105623.

It is an arithmetic number, because the mean of its divisors is an integer number (3007491).

Almost surely, 2^20682998 is an apocalyptic number.

20682998 is a deficient number, since it is larger than the sum of its proper divisors (15406894).

20682998 is a wasteful number, since it uses less digits than its factorization.

20682998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211067 (or 211060 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 20682998 is about 4547.8564181381. The cubic root of 20682998 is about 274.4971438639.

The spelling of 20682998 in words is "twenty million, six hundred eighty-two thousand, nine hundred ninety-eight".