244240 has 40 divisors (see below), whose sum is σ = 589248. Its totient is φ = 94080.

The previous prime is 244219. The next prime is 244243. The reversal of 244240 is 42442.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (244243) 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, 3405 + ... + 3475.

2²⁴⁴²⁴⁰ is an apocalyptic number.

244240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294624).

244240 is an abundant number, since it is smaller than the sum of its proper divisors (345008).

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

244240 is a wasteful number, since it uses less digits than its factorization.

244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 244240 is about 494.2064346000. The cubic root of 244240 is about 62.5084788497.

Adding to 244240 its reverse (42442), we get a palindrome (286682).

It can be divided in two parts, 244 and 240, that added together give a palindrome (484).

The spelling of 244240 in words is "two hundred forty-four thousand, two hundred forty", and thus it is an iban number.