442504 has 8 divisors (see below), whose sum is σ = 829710. Its totient is φ = 221248.

The previous prime is 442501. The next prime is 442517. The reversal of 442504 is 405244.

It can be written as a sum of positive squares in only one way, i.e., 280900 + 161604 = 530^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (442501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27649 + ... + 27664.

2⁴⁴²⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

442504 is a deficient number, since it is larger than the sum of its proper divisors (387206).

442504 is a wasteful number, since it uses less digits than its factorization.

442504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55319 (or 55315 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 442504 is about 665.2097413598. The cubic root of 442504 is about 76.2030580908.

Adding to 442504 its reverse (405244), we get a palindrome (847748).

It can be divided in two parts, 442 and 504, that added together give a triangular number (946 = T₄₃).

The spelling of 442504 in words is "four hundred forty-two thousand, five hundred four".