20635130 has 16 divisors (see below), whose sum is σ = 37199520. Its totient is φ = 8241552.

The previous prime is 20635103. The next prime is 20635169. The reversal of 20635130 is 3153602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8381 + ... + 10559.

It is an arithmetic number, because the mean of its divisors is an integer number (2324970).

Almost surely, 2^20635130 is an apocalyptic number.

20635130 is a deficient number, since it is larger than the sum of its proper divisors (16564390).

20635130 is a wasteful number, since it uses less digits than its factorization.

20635130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 20635130 is about 4542.5906705315. The cubic root of 20635130 is about 274.2852181239.

Adding to 20635130 its reverse (3153602), we get a palindrome (23788732).

The spelling of 20635130 in words is "twenty million, six hundred thirty-five thousand, one hundred thirty".