42444004 has 12 divisors (see below), whose sum is σ = 74431728. Its totient is φ = 21177800.

The previous prime is 42444001. The next prime is 42444029. The reversal of 42444004 is 40044424.

It is not an unprimeable number, because it can be changed into a prime (42444001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8842 + ... + 12769.

It is an arithmetic number, because the mean of its divisors is an integer number (6202644).

Almost surely, 2^42444004 is an apocalyptic number.

It is an amenable number.

42444004 is a deficient number, since it is larger than the sum of its proper divisors (31987724).

42444004 is a wasteful number, since it uses less digits than its factorization.

42444004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22106 (or 22104 counting only the distinct ones).

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

The square root of 42444004 is about 6514.9062924957. The cubic root of 42444004 is about 348.8232699349.

Adding to 42444004 its reverse (40044424), we get a palindrome (82488428).

The spelling of 42444004 in words is "forty-two million, four hundred forty-four thousand, four".