20266036 has 24 divisors (see below), whose sum is σ = 42295680. Its totient is φ = 8307552.

The previous prime is 20266007. The next prime is 20266039. The reversal of 20266036 is 63066202.

It is a self number, because there is not a number n which added to its sum of digits gives 20266036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266039) 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, 15091 + ... + 16378.

It is an arithmetic number, because the mean of its divisors is an integer number (1762320).

Almost surely, 2^20266036 is an apocalyptic number.

It is an amenable number.

20266036 is an abundant number, since it is smaller than the sum of its proper divisors (22029644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20266036 is a wasteful number, since it uses less digits than its factorization.

20266036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31503 (or 31501 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20266036 is about 4501.7814251694. The cubic root of 20266036 is about 272.6400189430.

The spelling of 20266036 in words is "twenty million, two hundred sixty-six thousand, thirty-six".