20420140414 has 4 divisors (see below), whose sum is σ = 30630210624. Its totient is φ = 10210070206.

The previous prime is 20420140409. The next prime is 20420140421. The reversal of 20420140414 is 41404102402.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105035102 + ... + 5105035105.

It is an arithmetic number, because the mean of its divisors is an integer number (7657552656).

Almost surely, 2^20420140414 is an apocalyptic number.

20420140414 is a deficient number, since it is larger than the sum of its proper divisors (10210070210).

20420140414 is a wasteful number, since it uses less digits than its factorization.

20420140414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210070209.

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

Adding to 20420140414 its reverse (41404102402), we get a palindrome (61824242816).

The spelling of 20420140414 in words is "twenty billion, four hundred twenty million, one hundred forty thousand, four hundred fourteen".