20132405404 has 24 divisors (see below), whose sum is σ = 36724842000. Its totient is φ = 9644893440.

The previous prime is 20132405401. The next prime is 20132405417. The reversal of 20132405404 is 40450423102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132405401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647229 + ... + 677620.

It is an arithmetic number, because the mean of its divisors is an integer number (1530201750).

Almost surely, 2^20132405404 is an apocalyptic number.

It is an amenable number.

20132405404 is a deficient number, since it is larger than the sum of its proper divisors (16592436596).

20132405404 is a wasteful number, since it uses less digits than its factorization.

20132405404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325013 (or 1325011 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20132405404 its reverse (40450423102), we get a palindrome (60582828506).

The spelling of 20132405404 in words is "twenty billion, one hundred thirty-two million, four hundred five thousand, four hundred four".