42849416 has 16 divisors (see below), whose sum is σ = 80482140. Its totient is φ = 21387520.

The previous prime is 42849413. The next prime is 42849451. The reversal of 42849416 is 61494824.

It can be written as a sum of positive squares in 2 ways, for example, as 42120100 + 729316 = 6490^2 + 854^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42849416.

It is not an unprimeable number, because it can be changed into a prime (42849413) 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, 596 + ... + 9276.

Almost surely, 2^42849416 is an apocalyptic number.

It is an amenable number.

42849416 is a deficient number, since it is larger than the sum of its proper divisors (37632724).

42849416 is a wasteful number, since it uses less digits than its factorization.

42849416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304 (or 9300 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 42849416 is about 6545.9465320151. The cubic root of 42849416 is about 349.9303698219.

The spelling of 42849416 in words is "forty-two million, eight hundred forty-nine thousand, four hundred sixteen".