20442342422434 has 32 divisors (see below), whose sum is σ = 31062474132480. Its totient is φ = 10088422214400.

The previous prime is 20442342422423. The next prime is 20442342422471. The reversal of 20442342422434 is 43422424324402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485736447 + ... + 1485750205.

It is an arithmetic number, because the mean of its divisors is an integer number (970702316640).

Almost surely, 2^{20442342422434} is an apocalyptic number.

20442342422434 is a deficient number, since it is larger than the sum of its proper divisors (10620131710046).

20442342422434 is a wasteful number, since it uses less digits than its factorization.

20442342422434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21706.

The product of its (nonzero) digits is 1179648, while the sum is 40.

Adding to 20442342422434 its reverse (43422424324402), we get a palindrome (63864766746836).

The spelling of 20442342422434 in words is "twenty trillion, four hundred forty-two billion, three hundred forty-two million, four hundred twenty-two thousand, four hundred thirty-four".