42849412 has 6 divisors (see below), whose sum is σ = 74986478. Its totient is φ = 21424704.

The previous prime is 42849403. The next prime is 42849413. The reversal of 42849412 is 21494824.

It can be written as a sum of positive squares in only one way, i.e., 32901696 + 9947716 = 5736^2 + 3154^2 .

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 as a sum of consecutive naturals, namely, 5356173 + ... + 5356180.

Almost surely, 2^42849412 is an apocalyptic number.

It is an amenable number.

42849412 is a deficient number, since it is larger than the sum of its proper divisors (32137066).

42849412 is a wasteful number, since it uses less digits than its factorization.

42849412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712357 (or 10712355 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 42849412 is about 6545.9462264825. The cubic root of 42849412 is about 349.9303589332.

The spelling of 42849412 in words is "forty-two million, eight hundred forty-nine thousand, four hundred twelve".