20630084 has 12 divisors (see below), whose sum is σ = 36144108. Its totient is φ = 10303200.

The previous prime is 20630083. The next prime is 20630087. The reversal of 20630084 is 48003602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 4000000 = 4078^2 + 2000^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814 + ... + 6674.

It is an arithmetic number, because the mean of its divisors is an integer number (3012009).

Almost surely, 2^20630084 is an apocalyptic number.

It is an amenable number.

20630084 is a deficient number, since it is larger than the sum of its proper divisors (15514024).

20630084 is a wasteful number, since it uses less digits than its factorization.

20630084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926 (or 5924 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20630084 is about 4542.0352266357. The cubic root of 20630084 is about 274.2628589070.

Adding to 20630084 its reverse (48003602), we get a palindrome (68633686).

The spelling of 20630084 in words is "twenty million, six hundred thirty thousand, eighty-four".