6244240 has 40 divisors (see below), whose sum is σ = 14697720. Its totient is φ = 2466816.

The previous prime is 6244229. The next prime is 6244241. The reversal of 6244240 is 424426.

It can be written as a sum of positive squares in 4 ways, for example, as 712336 + 5531904 = 844^2 + 2352^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6244241) 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, 6682 + ... + 7558.

It is an arithmetic number, because the mean of its divisors is an integer number (367443).

Almost surely, 2^6244240 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 6244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7348860).

6244240 is an abundant number, since it is smaller than the sum of its proper divisors (8453480).

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

6244240 is a wasteful number, since it uses less digits than its factorization.

6244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 6244240 is about 2498.8477344568. The cubic root of 6244240 is about 184.1449708159.

Adding to 6244240 its reverse (424426), we get a palindrome (6668666).

The spelling of 6244240 in words is "six million, two hundred forty-four thousand, two hundred forty".