20422541242 has 16 divisors (see below), whose sum is σ = 31389460200. Its totient is φ = 9959522560.

The previous prime is 20422541233. The next prime is 20422541263. The reversal of 20422541242 is 24214522402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11659896361 + 8762644881 = 107981^2 + 93609^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20422541242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290484 + ... + 353872.

Almost surely, 2^20422541242 is an apocalyptic number.

20422541242 is a deficient number, since it is larger than the sum of its proper divisors (10966918958).

20422541242 is a wasteful number, since it uses less digits than its factorization.

20422541242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67361.

The product of its (nonzero) digits is 10240, while the sum is 28.

The spelling of 20422541242 in words is "twenty billion, four hundred twenty-two million, five hundred forty-one thousand, two hundred forty-two".