20234442042 has 12 divisors (see below), whose sum is σ = 43841291130. Its totient is φ = 6744814008.

The previous prime is 20234442023. The next prime is 20234442071. The reversal of 20234442042 is 24024443202.

20234442042 is a `hidden beast` number, since 2 + 0 + 234 + 4 + 420 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19374134481 + 860307561 = 139191^2 + 29331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20234441997 and 20234442015.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562067817 + ... + 562067852.

Almost surely, 2^20234442042 is an apocalyptic number.

20234442042 is an abundant number, since it is smaller than the sum of its proper divisors (23606849088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20234442042 is a wasteful number, since it uses less digits than its factorization.

20234442042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124135677 (or 1124135674 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 20234442042 its reverse (24024443202), we get a palindrome (44258885244).

The spelling of 20234442042 in words is "twenty billion, two hundred thirty-four million, four hundred forty-two thousand, forty-two".