20432202352442 has 16 divisors (see below), whose sum is σ = 32451548830272. Its totient is φ = 9615034368960.

The previous prime is 20432202352337. The next prime is 20432202352447. The reversal of 20432202352442 is 24425320223402.

It is a super-2 number, since 2×20432202352442² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20432202352447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937784 + ... + 6460947.

It is an arithmetic number, because the mean of its divisors is an integer number (2028221801892).

Almost surely, 2^{20432202352442} is an apocalyptic number.

20432202352442 is a deficient number, since it is larger than the sum of its proper divisors (12019346477830).

20432202352442 is a wasteful number, since it uses less digits than its factorization.

20432202352442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7479973.

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 20432202352442 its reverse (24425320223402), we get a palindrome (44857522575844).

The spelling of 20432202352442 in words is "twenty trillion, four hundred thirty-two billion, two hundred two million, three hundred fifty-two thousand, four hundred forty-two".