20330004 has 12 divisors (see below), whose sum is σ = 47436704. Its totient is φ = 6776664.

The previous prime is 20329993. The next prime is 20330047. The reversal of 20330004 is 40003302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1694167 = 20330004 / (2 + 0 + 3 + 3 + 0 + 0 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 847072 + ... + 847095.

Almost surely, 2^20330004 is an apocalyptic number.

It is an amenable number.

20330004 is an abundant number, since it is smaller than the sum of its proper divisors (27106700).

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

20330004 is a wasteful number, since it uses less digits than its factorization.

20330004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694174 (or 1694172 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20330004 is about 4508.8805706073. The cubic root of 20330004 is about 272.9265725856.

Adding to 20330004 its reverse (40003302), we get a palindrome (60333306).

The spelling of 20330004 in words is "twenty million, three hundred thirty thousand, four".