20662204 has 6 divisors (see below), whose sum is σ = 36158864. Its totient is φ = 10331100.

The previous prime is 20662183. The next prime is 20662241. The reversal of 20662204 is 40226602.

It is a happy number.

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, 2582772 + ... + 2582779.

Almost surely, 2^20662204 is an apocalyptic number.

It is an amenable number.

20662204 is a deficient number, since it is larger than the sum of its proper divisors (15496660).

20662204 is a wasteful number, since it uses less digits than its factorization.

20662204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165555 (or 5165553 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20662204 is about 4545.5697112683. The cubic root of 20662204 is about 274.4051229115.

Adding to 20662204 its reverse (40226602), we get a palindrome (60888806).

The spelling of 20662204 in words is "twenty million, six hundred sixty-two thousand, two hundred four".