20340005422 has 8 divisors (see below), whose sum is σ = 33283645272. Its totient is φ = 9245457000.

The previous prime is 20340005401. The next prime is 20340005423. The reversal of 20340005422 is 22450004302.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 924545701 = 20340005422 / (2 + 0 + 3 + 4 + 0 + 0 + 0 + 5 + 4 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20340005393 and 20340005402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340005423) 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, 462272829 + ... + 462272872.

It is an arithmetic number, because the mean of its divisors is an integer number (4160455659).

Almost surely, 2^20340005422 is an apocalyptic number.

20340005422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20340005422 is a deficient number, since it is larger than the sum of its proper divisors (12943639850).

20340005422 is a wasteful number, since it uses less digits than its factorization.

20340005422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924545714.

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 20340005422 its reverse (22450004302), we get a palindrome (42790009724).

It can be divided in two parts, 203 and 40005422, that added together give a square (40005625 = 6325²).

The spelling of 20340005422 in words is "twenty billion, three hundred forty million, five thousand, four hundred twenty-two".