20041212 has 24 divisors (see below), whose sum is σ = 46835712. Its totient is φ = 6670000.

The previous prime is 20041199. The next prime is 20041213. The reversal of 20041212 is 21214002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041213) 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, 13087 + ... + 14537.

It is an arithmetic number, because the mean of its divisors is an integer number (1951488).

Almost surely, 2^20041212 is an apocalyptic number.

It is an amenable number.

20041212 is an abundant number, since it is smaller than the sum of its proper divisors (26794500).

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

20041212 is a wasteful number, since it uses less digits than its factorization.

20041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20041212 is about 4476.7412254898. The cubic root of 20041212 is about 271.6280780415.

Adding to 20041212 its reverse (21214002), we get a palindrome (41255214).

The spelling of 20041212 in words is "twenty million, forty-one thousand, two hundred twelve".