20140140404 has 12 divisors (see below), whose sum is σ = 35246287104. Its totient is φ = 10069772664.

The previous prime is 20140140401. The next prime is 20140140451. The reversal of 20140140404 is 40404104102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140140401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159917 + ... + 256619.

It is an arithmetic number, because the mean of its divisors is an integer number (2937190592).

Almost surely, 2^20140140404 is an apocalyptic number.

It is an amenable number.

20140140404 is a deficient number, since it is larger than the sum of its proper divisors (15106146700).

20140140404 is a wasteful number, since it uses less digits than its factorization.

20140140404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148774 (or 148772 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20140140404 its reverse (40404104102), we get a palindrome (60544244506).

The spelling of 20140140404 in words is "twenty billion, one hundred forty million, one hundred forty thousand, four hundred four".