20132404 has 12 divisors (see below), whose sum is σ = 35380800. Its totient is φ = 10023608.

The previous prime is 20132401. The next prime is 20132407. The reversal of 20132404 is 40423102.

It is an interprime number because it is at equal distance from previous prime (20132401) and next prime (20132407).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132401) 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 3 ways as a sum of consecutive naturals, for example, 9574 + ... + 11485.

It is an arithmetic number, because the mean of its divisors is an integer number (2948400).

Almost surely, 2^20132404 is an apocalyptic number.

It is an amenable number.

20132404 is a deficient number, since it is larger than the sum of its proper divisors (15248396).

20132404 is a wasteful number, since it uses less digits than its factorization.

20132404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21302 (or 21300 counting only the distinct ones).

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

The square root of 20132404 is about 4486.9147529232. The cubic root of 20132404 is about 272.0394442509.

Adding to 20132404 its reverse (40423102), we get a palindrome (60555506).

The spelling of 20132404 in words is "twenty million, one hundred thirty-two thousand, four hundred four".