20867041 has 8 divisors (see below), whose sum is σ = 23794344. Its totient is φ = 18128640.

The previous prime is 20867039. The next prime is 20867047. The reversal of 20867041 is 14076802.

It can be written as a sum of positive squares in 4 ways, for example, as 4016016 + 16851025 = 2004^2 + 4105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20867041 - 2¹ = 20867039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20867047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46990 + ... + 47431.

It is an arithmetic number, because the mean of its divisors is an integer number (2974293).

Almost surely, 2^20867041 is an apocalyptic number.

It is an amenable number.

20867041 is a deficient number, since it is larger than the sum of its proper divisors (2927303).

20867041 is a wasteful number, since it uses less digits than its factorization.

20867041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94451.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 20867041 is about 4568.0456433797. The cubic root of 20867041 is about 275.3089244615.

The spelling of 20867041 in words is "twenty million, eight hundred sixty-seven thousand, forty-one".