20641052 has 12 divisors (see below), whose sum is σ = 36177120. Its totient is φ = 10304736.

The previous prime is 20641039. The next prime is 20641057. The reversal of 20641052 is 25014602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20641057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713 + ... + 6464.

It is an arithmetic number, because the mean of its divisors is an integer number (3014760).

Almost surely, 2^20641052 is an apocalyptic number.

It is an amenable number.

20641052 is a deficient number, since it is larger than the sum of its proper divisors (15536068).

20641052 is a wasteful number, since it uses less digits than its factorization.

20641052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900 (or 7898 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20641052 is about 4543.2424544591. The cubic root of 20641052 is about 274.3114543159.

Adding to 20641052 its reverse (25014602), we get a palindrome (45655654).

The spelling of 20641052 in words is "twenty million, six hundred forty-one thousand, fifty-two".