442770 has 16 divisors (see below), whose sum is σ = 1062720. Its totient is φ = 118064.

The previous prime is 442769. The next prime is 442777. The reversal of 442770 is 77244.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 442770.

It is not an unprimeable number, because it can be changed into a prime (442777) 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, 7350 + ... + 7409.

It is an arithmetic number, because the mean of its divisors is an integer number (66420).

2⁴⁴²⁷⁷⁰ is an apocalyptic number.

442770 is an abundant number, since it is smaller than the sum of its proper divisors (619950).

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

442770 is a wasteful number, since it uses less digits than its factorization.

442770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14769.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 442770 is about 665.4096482619. The cubic root of 442770 is about 76.2183242076.

The spelling of 442770 in words is "four hundred forty-two thousand, seven hundred seventy", and thus it is an iban number.