20623030 has 8 divisors (see below), whose sum is σ = 37121472. Its totient is φ = 8249208.

The previous prime is 20623027. The next prime is 20623051. The reversal of 20623030 is 3032602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20622995 and 20623013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031142 + ... + 1031161.

It is an arithmetic number, because the mean of its divisors is an integer number (4640184).

Almost surely, 2^20623030 is an apocalyptic number.

20623030 is a deficient number, since it is larger than the sum of its proper divisors (16498442).

20623030 is a wasteful number, since it uses less digits than its factorization.

20623030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062310.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20623030 is about 4541.2586361052. The cubic root of 20623030 is about 274.2315959748.

Adding to 20623030 its reverse (3032602), we get a palindrome (23655632).

The spelling of 20623030 in words is "twenty million, six hundred twenty-three thousand, thirty".