20606204 has 6 divisors (see below), whose sum is σ = 36060864. Its totient is φ = 10303100.

The previous prime is 20606197. The next prime is 20606219. The reversal of 20606204 is 40260602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2575772 + ... + 2575779.

It is an arithmetic number, because the mean of its divisors is an integer number (6010144).

Almost surely, 2^20606204 is an apocalyptic number.

It is an amenable number.

20606204 is a deficient number, since it is larger than the sum of its proper divisors (15454660).

20606204 is a wasteful number, since it uses less digits than its factorization.

20606204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151555 (or 5151553 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20606204 is about 4539.4056879728. The cubic root of 20606204 is about 274.1569952931.

Adding to 20606204 its reverse (40260602), we get a palindrome (60866806).

The spelling of 20606204 in words is "twenty million, six hundred six thousand, two hundred four".