20032104 has 16 divisors (see below), whose sum is σ = 50080320. Its totient is φ = 6677360.

The previous prime is 20032097. The next prime is 20032141. The reversal of 20032104 is 40123002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20032104.

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, 417312 + ... + 417359.

It is an arithmetic number, because the mean of its divisors is an integer number (3130020).

Almost surely, 2^20032104 is an apocalyptic number.

20032104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20032104 is an abundant number, since it is smaller than the sum of its proper divisors (30048216).

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

20032104 is a wasteful number, since it uses less digits than its factorization.

20032104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834680 (or 834676 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20032104 is about 4475.7238520713. The cubic root of 20032104 is about 271.5869234545.

Adding to 20032104 its reverse (40123002), we get a palindrome (60155106).

The spelling of 20032104 in words is "twenty million, thirty-two thousand, one hundred four".