444740 has 24 divisors (see below), whose sum is σ = 960792. Its totient is φ = 172800.

The previous prime is 444739. The next prime is 444767. The reversal of 444740 is 47444.

It can be written as a sum of positive squares in 4 ways, for example, as 200704 + 244036 = 448^2 + 494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (40033).

2⁴⁴⁴⁷⁴⁰ 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 444740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480396).

444740 is an abundant number, since it is smaller than the sum of its proper divisors (516052).

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

444740 is a wasteful number, since it uses less digits than its factorization.

444740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 444740 is about 666.8882964935. Note that the first 3 decimals coincide. The cubic root of 444740 is about 76.3311954212.

It can be divided in two parts, 4 and 44740, that added together give a palindrome (44744).

The spelling of 444740 in words is "four hundred forty-four thousand, seven hundred forty", and thus it is an iban number.