20010304 has 28 divisors (see below), whose sum is σ = 40197024. Its totient is φ = 9881984.

The previous prime is 20010281. The next prime is 20010307. The reversal of 20010304 is 40301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3429 + ... + 7195.

It is an arithmetic number, because the mean of its divisors is an integer number (1435608).

Almost surely, 2^20010304 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 20010304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20098512).

20010304 is an abundant number, since it is smaller than the sum of its proper divisors (20186720).

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

20010304 is an equidigital number, since it uses as much as digits as its factorization.

20010304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20010304 is about 4473.2878288793. The cubic root of 20010304 is about 271.4883692549.

Adding to 20010304 its reverse (40301002), we get a palindrome (60311306).

The spelling of 20010304 in words is "twenty million, ten thousand, three hundred four".