20741085 has 12 divisors (see below), whose sum is σ = 35951292. Its totient is φ = 11061888.

The previous prime is 20741069. The next prime is 20741107. The reversal of 20741085 is 58014702.

It can be written as a sum of positive squares in 2 ways, for example, as 3526884 + 17214201 = 1878^2 + 4149^2 .

It is not a de Polignac number, because 20741085 - 2⁴ = 20741069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230412 + ... + 230501.

It is an arithmetic number, because the mean of its divisors is an integer number (2995941).

Almost surely, 2^20741085 is an apocalyptic number.

It is an amenable number.

20741085 is a deficient number, since it is larger than the sum of its proper divisors (15210207).

20741085 is a wasteful number, since it uses less digits than its factorization.

20741085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460924 (or 460921 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 20741085 is about 4554.2381360662. The cubic root of 20741085 is about 274.7538734450.

Adding to 20741085 its reverse (58014702), we get a palindrome (78755787).

The spelling of 20741085 in words is "twenty million, seven hundred forty-one thousand, eighty-five".