20626366 has 12 divisors (see below), whose sum is σ = 32045832. Its totient is φ = 9956744.

The previous prime is 20626363. The next prime is 20626379. The reversal of 20626366 is 66362602.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20626363) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4450 + ... + 7813.

It is an arithmetic number, because the mean of its divisors is an integer number (2670486).

Almost surely, 2^20626366 is an apocalyptic number.

20626366 is a deficient number, since it is larger than the sum of its proper divisors (11419466).

20626366 is a wasteful number, since it uses less digits than its factorization.

20626366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323 (or 12294 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 20626366 is about 4541.6259203065. The cubic root of 20626366 is about 274.2463818280.

Adding to 20626366 its reverse (66362602), we get a palindrome (86988968).

The spelling of 20626366 in words is "twenty million, six hundred twenty-six thousand, three hundred sixty-six".