442480 has 20 divisors (see below), whose sum is σ = 1028952. Its totient is φ = 176960.

The previous prime is 442469. The next prime is 442487. The reversal of 442480 is 84244.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2686 + ... + 2845.

2⁴⁴²⁴⁸⁰ is an apocalyptic number.

442480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442480 is an abundant number, since it is smaller than the sum of its proper divisors (586472).

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

442480 is a wasteful number, since it uses less digits than its factorization.

442480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5544 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 442480 is about 665.1917016921. The cubic root of 442480 is about 76.2016803959.

The spelling of 442480 in words is "four hundred forty-two thousand, four hundred eighty".