20444430342 has 32 divisors (see below), whose sum is σ = 46799626752. Its totient is φ = 5832578304.

The previous prime is 20444430311. The next prime is 20444430379. The reversal of 20444430342 is 24303444402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333378 + ... + 389909.

It is an arithmetic number, because the mean of its divisors is an integer number (1462488336).

Almost surely, 2^20444430342 is an apocalyptic number.

20444430342 is an abundant number, since it is smaller than the sum of its proper divisors (26355196410).

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

20444430342 is a wasteful number, since it uses less digits than its factorization.

20444430342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723972.

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

Adding to 20444430342 its reverse (24303444402), we get a palindrome (44747874744).

The spelling of 20444430342 in words is "twenty billion, four hundred forty-four million, four hundred thirty thousand, three hundred forty-two".