42004444 has 12 divisors (see below), whose sum is σ = 74605384. Its totient is φ = 20688624.

The previous prime is 42004439. The next prime is 42004451. The reversal of 42004444 is 44440024.

42004444 is a modest number, since divided by 4444 gives 4200 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78099 + ... + 78634.

Almost surely, 2^42004444 is an apocalyptic number.

It is an amenable number.

42004444 is a deficient number, since it is larger than the sum of its proper divisors (32600940).

42004444 is a wasteful number, since it uses less digits than its factorization.

42004444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156804 (or 156802 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 42004444 is about 6481.0835513824. The cubic root of 42004444 is about 347.6149239471.

Adding to 42004444 its reverse (44440024), we get a palindrome (86444468).

The spelling of 42004444 in words is "forty-two million, four thousand, four hundred forty-four".