442473 has 8 divisors (see below), whose sum is σ = 597408. Its totient is φ = 291264.

The previous prime is 442469. The next prime is 442487. The reversal of 442473 is 374244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442473 - 2² = 442469 is a prime.

442473 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (442573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 1137.

It is an arithmetic number, because the mean of its divisors is an integer number (74676).

2⁴⁴²⁴⁷³ is an apocalyptic number.

It is an amenable number.

442473 is a deficient number, since it is larger than the sum of its proper divisors (154935).

442473 is a wasteful number, since it uses less digits than its factorization.

442473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its digits is 2688, while the sum is 24.

The square root of 442473 is about 665.1864400302. The cubic root of 442473 is about 76.2012785589.

The spelling of 442473 in words is "four hundred forty-two thousand, four hundred seventy-three", and thus it is an iban number.