444140 has 24 divisors (see below), whose sum is σ = 952560. Its totient is φ = 173888.

The previous prime is 444131. The next prime is 444151. The reversal of 444140 is 41444.

It is an unprimeable number.

444140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (39690).

2⁴⁴⁴¹⁴⁰ is an apocalyptic number.

It is an amenable number.

444140 is an abundant number, since it is smaller than the sum of its proper divisors (508420).

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

444140 is a wasteful number, since it uses less digits than its factorization.

444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 444140 is about 666.4382942179. The cubic root of 444140 is about 76.2968537621.

Adding to 444140 its reverse (41444), we get a palindrome (485584).

It can be divided in two parts, 4 and 44140, that added together give a palindrome (44144).

The spelling of 444140 in words is "four hundred forty-four thousand, one hundred forty", and thus it is an iban number.