1001224 has 32 divisors (see below), whose sum is σ = 2260800. Its totient is φ = 406080.

The previous prime is 1001219. The next prime is 1001237. The reversal of 1001224 is 4221001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (70650).

2^1001224 is an apocalyptic number.

1001224 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 1001224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130400).

1001224 is an abundant number, since it is smaller than the sum of its proper divisors (1259576).

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

1001224 is a wasteful number, since it uses less digits than its factorization.

1001224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1001224 is about 1000.6118128425. The cubic root of 1001224 is about 100.0407833649.

Adding to 1001224 its reverse (4221001), we get a palindrome (5222225).

It can be divided in two parts, 1001 and 224, that added together give a triangular number (1225 = T₄₉).

The spelling of 1001224 in words is "one million, one thousand, two hundred twenty-four".