42424516 has 12 divisors (see below), whose sum is σ = 74785788. Its totient is φ = 21057152.

The previous prime is 42424483. The next prime is 42424517. The reversal of 42424516 is 61542424.

It can be written as a sum of positive squares in 2 ways, for example, as 22657600 + 19766916 = 4760^2 + 4446^2 .

It is not an unprimeable number, because it can be changed into a prime (42424517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38161 + ... + 39256.

It is an arithmetic number, because the mean of its divisors is an integer number (6232149).

Almost surely, 2^42424516 is an apocalyptic number.

It is an amenable number.

42424516 is a deficient number, since it is larger than the sum of its proper divisors (32361272).

42424516 is a wasteful number, since it uses less digits than its factorization.

42424516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77558 (or 77556 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 42424516 is about 6513.4104737841. The cubic root of 42424516 is about 348.7698748110.

Adding to 42424516 its product of digits (7680), we get a square (42432196 = 6514²).

The spelling of 42424516 in words is "forty-two million, four hundred twenty-four thousand, five hundred sixteen".