42020444 has 24 divisors (see below), whose sum is σ = 75878208. Its totient is φ = 20350400.

The previous prime is 42020441. The next prime is 42020483. The reversal of 42020444 is 44402024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17882 + ... + 20094.

It is an arithmetic number, because the mean of its divisors is an integer number (3161592).

Almost surely, 2^42020444 is an apocalyptic number.

It is an amenable number.

42020444 is a deficient number, since it is larger than the sum of its proper divisors (33857764).

42020444 is a wasteful number, since it uses less digits than its factorization.

42020444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365 (or 2363 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 42020444 is about 6482.3177953568. The cubic root of 42020444 is about 347.6590552517.

Adding to 42020444 its reverse (44402024), we get a palindrome (86422468).

The spelling of 42020444 in words is "forty-two million, twenty thousand, four hundred forty-four".