42003344 has 20 divisors (see below), whose sum is σ = 81713520. Its totient is φ = 20916000.

The previous prime is 42003337. The next prime is 42003371. The reversal of 42003344 is 44330024.

It is a happy 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, 1214 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (4085676).

Almost surely, 2^42003344 is an apocalyptic number.

It is an amenable number.

42003344 is a deficient number, since it is larger than the sum of its proper divisors (39710176).

42003344 is a wasteful number, since it uses less digits than its factorization.

42003344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10718 (or 10712 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 42003344 is about 6480.9986884739. The cubic root of 42003344 is about 347.6118895082.

Adding to 42003344 its reverse (44330024), we get a palindrome (86333368).

The spelling of 42003344 in words is "forty-two million, three thousand, three hundred forty-four".