20623196 has 12 divisors (see below), whose sum is σ = 39371640. Its totient is φ = 9374160.

The previous prime is 20623181. The next prime is 20623217. The reversal of 20623196 is 69132602.

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, 234311 + ... + 234398.

It is an arithmetic number, because the mean of its divisors is an integer number (3280970).

Almost surely, 2^20623196 is an apocalyptic number.

It is an amenable number.

20623196 is a deficient number, since it is larger than the sum of its proper divisors (18748444).

20623196 is a wasteful number, since it uses less digits than its factorization.

20623196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468724 (or 468722 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 20623196 is about 4541.2769129398. The cubic root of 20623196 is about 274.2323317594.

Adding to 20623196 its reverse (69132602), we get a palindrome (89755798).

The spelling of 20623196 in words is "twenty million, six hundred twenty-three thousand, one hundred ninety-six".