20541012 has 24 divisors (see below), whose sum is σ = 48076896. Its totient is φ = 6825888.

The previous prime is 20540999. The next prime is 20541013. The reversal of 20541012 is 21014502.

It is a junction number, because it is equal to n+sod(n) for n = 20540982 and 20541000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1698 + ... + 6630.

It is an arithmetic number, because the mean of its divisors is an integer number (2003204).

Almost surely, 2^20541012 is an apocalyptic number.

It is an amenable number.

20541012 is an abundant number, since it is smaller than the sum of its proper divisors (27535884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20541012 is a wasteful number, since it uses less digits than its factorization.

20541012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287 (or 5285 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20541012 is about 4532.2193239074. The cubic root of 20541012 is about 273.8675723571.

Adding to 20541012 its reverse (21014502), we get a palindrome (41555514).

The spelling of 20541012 in words is "twenty million, five hundred forty-one thousand, twelve".