42016844 has 6 divisors (see below), whose sum is σ = 73529484. Its totient is φ = 21008420.

The previous prime is 42016831. The next prime is 42016889. The reversal of 42016844 is 44861024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252102 + ... + 5252109.

It is an arithmetic number, because the mean of its divisors is an integer number (12254914).

Almost surely, 2^42016844 is an apocalyptic number.

It is an amenable number.

42016844 is a deficient number, since it is larger than the sum of its proper divisors (31512640).

42016844 is a wasteful number, since it uses less digits than its factorization.

42016844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10504215 (or 10504213 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 42016844 is about 6482.0401109527. The cubic root of 42016844 is about 347.6491266850.

Adding to 42016844 its reverse (44861024), we get a palindrome (86877868).

The spelling of 42016844 in words is "forty-two million, sixteen thousand, eight hundred forty-four".