63442039 has 4 divisors (see below), whose sum is σ = 64070280. Its totient is φ = 62813800.

The previous prime is 63442031. The next prime is 63442063. The reversal of 63442039 is 93024436.

63442039 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 is a cyclic number.

It is not a de Polignac number, because 63442039 - 2³ = 63442031 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63442039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63442031) 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, 313969 + ... + 314170.

It is an arithmetic number, because the mean of its divisors is an integer number (16017570).

Almost surely, 2^63442039 is an apocalyptic number.

63442039 is a deficient number, since it is larger than the sum of its proper divisors (628241).

63442039 is a wasteful number, since it uses less digits than its factorization.

63442039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628240.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 63442039 is about 7965.0510983923. The cubic root of 63442039 is about 398.8341867497.

The spelling of 63442039 in words is "sixty-three million, four hundred forty-two thousand, thirty-nine".