42849073 has 4 divisors (see below), whose sum is σ = 42864228. Its totient is φ = 42833920.

The previous prime is 42849067. The next prime is 42849083. The reversal of 42849073 is 37094824.

It is a happy number.

42849073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25684624 + 17164449 = 5068^2 + 4143^2 .

It is a cyclic number.

It is not a de Polignac number, because 42849073 - 2⁵ = 42849041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42849013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1936 + ... + 9457.

It is an arithmetic number, because the mean of its divisors is an integer number (10716057).

Almost surely, 2^42849073 is an apocalyptic number.

It is an amenable number.

42849073 is a deficient number, since it is larger than the sum of its proper divisors (15155).

42849073 is a wasteful number, since it uses less digits than its factorization.

42849073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15154.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 42849073 is about 6545.9203325430. The cubic root of 42849073 is about 349.9294361146.

The spelling of 42849073 in words is "forty-two million, eight hundred forty-nine thousand, seventy-three".