20060404 has 36 divisors (see below), whose sum is σ = 43984164. Its totient is φ = 7934976.

The previous prime is 20060387. The next prime is 20060407. The reversal of 20060404 is 40406002.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 18472804 = 1260^2 + 4298^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20060407) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1389 + ... + 6484.

Almost surely, 2^20060404 is an apocalyptic number.

It is an amenable number.

20060404 is an abundant number, since it is smaller than the sum of its proper divisors (23923760).

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

20060404 is a wasteful number, since it uses less digits than its factorization.

20060404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904 (or 7895 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20060404 is about 4478.8842360570. The cubic root of 20060404 is about 271.7147564802.

Adding to 20060404 its reverse (40406002), we get a palindrome (60466406).

The spelling of 20060404 in words is "twenty million, sixty thousand, four hundred four".