20142068 has 12 divisors (see below), whose sum is σ = 35428932. Its totient is φ = 10019520.

The previous prime is 20142053. The next prime is 20142079. The reversal of 20142068 is 86024102.

It can be written as a sum of positive squares in 2 ways, for example, as 18472804 + 1669264 = 4298^2 + 1292^2 .

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, 11993 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (2952411).

Almost surely, 2^20142068 is an apocalyptic number.

It is an amenable number.

20142068 is a deficient number, since it is larger than the sum of its proper divisors (15286864).

20142068 is a wasteful number, since it uses less digits than its factorization.

20142068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25762 (or 25760 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20142068 is about 4487.9915329688. The cubic root of 20142068 is about 272.0829656082.

The spelling of 20142068 in words is "twenty million, one hundred forty-two thousand, sixty-eight".