20130264 has 96 divisors (see below), whose sum is σ = 67991040. Its totient is φ = 5227200.

The previous prime is 20130251. The next prime is 20130281. The reversal of 20130264 is 46203102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3729 + ... + 7359.

It is an arithmetic number, because the mean of its divisors is an integer number (708240).

Almost surely, 2^20130264 is an apocalyptic number.

20130264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20130264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33995520).

20130264 is an abundant number, since it is smaller than the sum of its proper divisors (47860776).

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

20130264 is a wasteful number, since it uses less digits than its factorization.

20130264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20130264 is about 4486.6762753736. The cubic root of 20130264 is about 272.0298049808.

Adding to 20130264 its reverse (46203102), we get a palindrome (66333366).

The spelling of 20130264 in words is "twenty million, one hundred thirty thousand, two hundred sixty-four".