20635030 has 16 divisors (see below), whose sum is σ = 40000464. Its totient is φ = 7619040.

The previous prime is 20635009. The next prime is 20635031. The reversal of 20635030 is 3053602.

It is a junction number, because it is equal to n+sod(n) for n = 20634989 and 20635007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20635031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79236 + ... + 79495.

It is an arithmetic number, because the mean of its divisors is an integer number (2500029).

Almost surely, 2^20635030 is an apocalyptic number.

20635030 is a deficient number, since it is larger than the sum of its proper divisors (19365434).

20635030 is a wasteful number, since it uses less digits than its factorization.

20635030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158751.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 20635030 is about 4542.5796635832. The cubic root of 20635030 is about 274.2847750516.

Adding to 20635030 its reverse (3053602), we get a palindrome (23688632).

The spelling of 20635030 in words is "twenty million, six hundred thirty-five thousand, thirty".