20140140442 has 8 divisors (see below), whose sum is σ = 30316961376. Its totient is φ = 10034486652.

The previous prime is 20140140401. The next prime is 20140140451. The reversal of 20140140442 is 24404104102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17791078 + ... + 17792209.

It is an arithmetic number, because the mean of its divisors is an integer number (3789620172).

Almost surely, 2^20140140442 is an apocalyptic number.

20140140442 is a deficient number, since it is larger than the sum of its proper divisors (10176820934).

20140140442 is a wasteful number, since it uses less digits than its factorization.

20140140442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35583572.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20140140442 its reverse (24404104102), we get a palindrome (44544244544).

The spelling of 20140140442 in words is "twenty billion, one hundred forty million, one hundred forty thousand, four hundred forty-two".