20626268 has 24 divisors (see below), whose sum is σ = 39372480. Its totient is φ = 9397440.

The previous prime is 20626261. The next prime is 20626303. The reversal of 20626268 is 86262602.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20626261) 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, 1598 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^20626268 is an apocalyptic number.

It is an amenable number.

20626268 is a deficient number, since it is larger than the sum of its proper divisors (18746212).

20626268 is a wasteful number, since it uses less digits than its factorization.

20626268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5115 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20626268 is about 4541.6151312061. The cubic root of 20626268 is about 274.2459474941.

The spelling of 20626268 in words is "twenty million, six hundred twenty-six thousand, two hundred sixty-eight".