20041012 has 12 divisors (see below), whose sum is σ = 35275716. Its totient is φ = 9962240.

The previous prime is 20041003. The next prime is 20041031. The reversal of 20041012 is 21014002.

It can be written as a sum of positive squares in 2 ways, for example, as 18610596 + 1430416 = 4314^2 + 1196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20041012.

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, 13789 + ... + 15172.

It is an arithmetic number, because the mean of its divisors is an integer number (2939643).

Almost surely, 2^20041012 is an apocalyptic number.

It is an amenable number.

20041012 is a deficient number, since it is larger than the sum of its proper divisors (15234704).

20041012 is a wasteful number, since it uses less digits than its factorization.

20041012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29138 (or 29136 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20041012 is about 4476.7188877570. The cubic root of 20041012 is about 271.6271744735.

Adding to 20041012 its reverse (21014002), we get a palindrome (41055014).

The spelling of 20041012 in words is "twenty million, forty-one thousand, twelve".