20234423442 has 16 divisors (see below), whose sum is σ = 40508966880. Its totient is φ = 6738121152.

The previous prime is 20234423401. The next prime is 20234423467. The reversal of 20234423442 is 24432443202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665108 + ... + 1677215.

It is an arithmetic number, because the mean of its divisors is an integer number (2531810430).

Almost surely, 2^20234423442 is an apocalyptic number.

20234423442 is an abundant number, since it is smaller than the sum of its proper divisors (20274543438).

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

20234423442 is a wasteful number, since it uses less digits than its factorization.

20234423442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343337.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 20234423442 its reverse (24432443202), we get a palindrome (44666866644).

The spelling of 20234423442 in words is "twenty billion, two hundred thirty-four million, four hundred twenty-three thousand, four hundred forty-two".