42442004 has 24 divisors (see below), whose sum is σ = 82404000. Its totient is φ = 18963680.

The previous prime is 42441983. The next prime is 42442027. The reversal of 42442004 is 40024424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5579 + ... + 10770.

It is an arithmetic number, because the mean of its divisors is an integer number (3433500).

Almost surely, 2^42442004 is an apocalyptic number.

42442004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42442004 is a deficient number, since it is larger than the sum of its proper divisors (39961996).

42442004 is a wasteful number, since it uses less digits than its factorization.

42442004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16423 (or 16421 counting only the distinct ones).

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

The square root of 42442004 is about 6514.7527965380. The cubic root of 42442004 is about 348.8177908925.

Adding to 42442004 its reverse (40024424), we get a palindrome (82466428).

The spelling of 42442004 in words is "forty-two million, four hundred forty-two thousand, four".