442524 has 12 divisors (see below), whose sum is σ = 1032584. Its totient is φ = 147504.

The previous prime is 442517. The next prime is 442531. The reversal of 442524 is 425244.

It is an interprime number because it is at equal distance from previous prime (442517) and next prime (442531).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 442524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18427 + ... + 18450.

2⁴⁴²⁵²⁴ is an apocalyptic number.

It is an amenable number.

442524 is an abundant number, since it is smaller than the sum of its proper divisors (590060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442524 is a wasteful number, since it uses less digits than its factorization.

442524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36884 (or 36882 counting only the distinct ones).

The product of its digits is 1280, while the sum is 21.

The square root of 442524 is about 665.2247740426. The cubic root of 442524 is about 76.2042061318.

Adding to 442524 its reverse (425244), we get a palindrome (867768).

The spelling of 442524 in words is "four hundred forty-two thousand, five hundred twenty-four".