20020264 has 32 divisors (see below), whose sum is σ = 41459040. Its totient is φ = 8987200.

The previous prime is 20020223. The next prime is 20020267. The reversal of 20020264 is 46202002.

It is not an unprimeable number, because it can be changed into a prime (20020267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5934 + ... + 8674.

It is an arithmetic number, because the mean of its divisors is an integer number (1295595).

Almost surely, 2^20020264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20729520).

20020264 is an abundant number, since it is smaller than the sum of its proper divisors (21438776).

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

20020264 is a wasteful number, since it uses less digits than its factorization.

20020264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20020264 is about 4474.4009654925. The cubic root of 20020264 is about 271.5334056462.

Adding to 20020264 its reverse (46202002), we get a palindrome (66222266).

The spelling of 20020264 in words is "twenty million, twenty thousand, two hundred sixty-four".