20982694 has 8 divisors (see below), whose sum is σ = 31497480. Its totient is φ = 10483536.

The previous prime is 20982683. The next prime is 20982733. The reversal of 20982694 is 49628902.

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, 402 + ... + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (3937185).

Almost surely, 2^20982694 is an apocalyptic number.

20982694 is a deficient number, since it is larger than the sum of its proper divisors (10514786).

20982694 is a wasteful number, since it uses less digits than its factorization.

20982694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7814.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 20982694 is about 4580.6870663690. The cubic root of 20982694 is about 275.8166096007.

The spelling of 20982694 in words is "twenty million, nine hundred eighty-two thousand, six hundred ninety-four".