63442 has 4 divisors (see below), whose sum is σ = 95166. Its totient is φ = 31720.

The previous prime is 63439. The next prime is 63443. The reversal of 63442 is 24436.

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

It can be written as a sum of positive squares in only one way, i.e., 63001 + 441 = 251^2 + 21^2 .

It is not an unprimeable number, because it can be changed into a prime (63443) 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, 15859 + ... + 15862.

2⁶³⁴⁴² is an apocalyptic number.

63442 is a deficient number, since it is larger than the sum of its proper divisors (31724).

63442 is a wasteful number, since it uses less digits than its factorization.

63442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31723.

The product of its digits is 576, while the sum is 19.

The square root of 63442 is about 251.8769540867. The cubic root of 63442 is about 39.8834105024.

Adding to 63442 its reverse (24436), we get a palindrome (87878).

It can be divided in two parts, 634 and 42, that added together give a palindrome (676).

The spelling of 63442 in words is "sixty-three thousand, four hundred forty-two".