442650 has 48 divisors (see below), whose sum is σ = 1187424. Its totient is φ = 108480.

The previous prime is 442633. The next prime is 442691. The reversal of 442650 is 56244.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1837 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (24738).

2⁴⁴²⁶⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593712).

442650 is an abundant number, since it is smaller than the sum of its proper divisors (744774).

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

442650 is a wasteful number, since it uses less digits than its factorization.

442650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 442650 is about 665.3194721335. The cubic root of 442650 is about 76.2114379948.

Adding to 442650 its reverse (56244), we get a palindrome (498894).

The spelling of 442650 in words is "four hundred forty-two thousand, six hundred fifty".