442900 has 36 divisors (see below), whose sum is σ = 992992. Its totient is φ = 171360.

The previous prime is 442879. The next prime is 442903. The reversal of 442900 is 9244.

442900 = T₆₉ + T₇₀ + ... + T₁₄₃.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442903) 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 11 ways as a sum of consecutive naturals, for example, 4249 + ... + 4351.

2⁴⁴²⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496496).

442900 is an abundant number, since it is smaller than the sum of its proper divisors (550092).

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

442900 is a wasteful number, since it uses less digits than its factorization.

442900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 442900 is about 665.5073252790. The cubic root of 442900 is about 76.2257828675.

The spelling of 442900 in words is "four hundred forty-two thousand, nine hundred".