20021614 has 8 divisors (see below), whose sum is σ = 31799088. Its totient is φ = 9421920.

The previous prime is 20021549. The next prime is 20021623. The reversal of 20021614 is 41612002.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294402 + ... + 294469.

It is an arithmetic number, because the mean of its divisors is an integer number (3974886).

Almost surely, 2^20021614 is an apocalyptic number.

20021614 is a deficient number, since it is larger than the sum of its proper divisors (11777474).

20021614 is a wasteful number, since it uses less digits than its factorization.

20021614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588890.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20021614 is about 4474.5518211325. The cubic root of 20021614 is about 271.5395088268.

Adding to 20021614 its reverse (41612002), we get a palindrome (61633616).

The spelling of 20021614 in words is "twenty million, twenty-one thousand, six hundred fourteen".