1244544 has 64 divisors (see below), whose sum is σ = 3786240. Its totient is φ = 354816.

The previous prime is 1244543. The next prime is 1244567. The reversal of 1244544 is 4454421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244543) 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, 2457 + ... + 2919.

It is an arithmetic number, because the mean of its divisors is an integer number (59160).

2^1244544 is an apocalyptic number.

1244544 is a gapful number since it is divisible by the number (14) 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 1244544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1893120).

1244544 is an abundant number, since it is smaller than the sum of its proper divisors (2541696).

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

1244544 is an equidigital number, since it uses as much as digits as its factorization.

1244544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 475 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 1244544 is about 1115.5913230211. The cubic root of 1244544 is about 107.5647779761.

Adding to 1244544 its reverse (4454421), we get a palindrome (5698965).

The spelling of 1244544 in words is "one million, two hundred forty-four thousand, five hundred forty-four".