20001304 has 8 divisors (see below), whose sum is σ = 37502460. Its totient is φ = 10000648.

The previous prime is 20001301. The next prime is 20001307. The reversal of 20001304 is 40310002.

It is an interprime number because it is at equal distance from previous prime (20001301) and next prime (20001307).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250074 + ... + 1250089.

Almost surely, 2^20001304 is an apocalyptic number.

It is an amenable number.

20001304 is a deficient number, since it is larger than the sum of its proper divisors (17501156).

20001304 is a wasteful number, since it uses less digits than its factorization.

20001304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500169 (or 2500165 counting only the distinct ones).

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

The square root of 20001304 is about 4472.2817442554. The cubic root of 20001304 is about 271.4476608656.

Adding to 20001304 its reverse (40310002), we get a palindrome (60311306).

The spelling of 20001304 in words is "twenty million, one thousand, three hundred four".