20602206 has 24 divisors (see below), whose sum is σ = 45252480. Its totient is φ = 6772896.

The previous prime is 20602189. The next prime is 20602207. The reversal of 20602206 is 60220602.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20602207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6526 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (1885520).

Almost surely, 2^20602206 is an apocalyptic number.

20602206 is an abundant number, since it is smaller than the sum of its proper divisors (24650274).

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

20602206 is a wasteful number, since it uses less digits than its factorization.

20602206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15760 (or 15757 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20602206 is about 4538.9653005944. The cubic root of 20602206 is about 274.1392635691.

Adding to 20602206 its reverse (60220602), we get a palindrome (80822808).

The spelling of 20602206 in words is "twenty million, six hundred two thousand, two hundred six".