20020002442 has 16 divisors (see below), whose sum is σ = 32763608064. Its totient is φ = 9099000000.

The previous prime is 20020002437. The next prime is 20020002449. The reversal of 20020002442 is 24420002002.

It is not an unprimeable number, because it can be changed into a prime (20020002449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177442 + ... + 267442.

It is an arithmetic number, because the mean of its divisors is an integer number (2047725504).

Almost surely, 2^20020002442 is an apocalyptic number.

20020002442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20020002442 is a deficient number, since it is larger than the sum of its proper divisors (12743605622).

20020002442 is a wasteful number, since it uses less digits than its factorization.

20020002442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100125.

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20020002442 its reverse (24420002002), we get a palindrome (44440004444).

The spelling of 20020002442 in words is "twenty billion, twenty million, two thousand, four hundred forty-two".