4244240 has 160 divisors (see below), whose sum is σ = 13499136. Its totient is φ = 1198080.

The previous prime is 4244221. The next prime is 4244299. The reversal of 4244240 is 424424.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a d-powerful number, because it can be written as 4² + 2⁹ + 4⁴ + 4⁷ + 2¹⁵ + 4¹¹ + 0 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80054 + ... + 80106.

Almost surely, 2^4244240 is an apocalyptic number.

4244240 is a gapful number since it is divisible by the number (40) 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 4244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6749568).

4244240 is an abundant number, since it is smaller than the sum of its proper divisors (9254896).

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

4244240 is a wasteful number, since it uses less digits than its factorization.

4244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4244240 is about 2060.1553339494. The cubic root of 4244240 is about 161.9073798665.

4244240 divided by its sum of digits (20) gives a palindrome (212212).

Adding to 4244240 its reverse (424424), we get a palindrome (4668664).

It can be divided in two parts, 424 and 4240, that added together give a palindrome (4664).

The spelling of 4244240 in words is "four million, two hundred forty-four thousand, two hundred forty".