1222424 has 32 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 515616.

The previous prime is 1222411. The next prime is 1222433. The reversal of 1222424 is 4242221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 4517 + ... + 4779.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2^1222424 is an apocalyptic number.

1222424 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 1222424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330560).

1222424 is an abundant number, since it is smaller than the sum of its proper divisors (1438696).

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

1222424 is a wasteful number, since it uses less digits than its factorization.

1222424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its digits is 256, while the sum is 17.

The square root of 1222424 is about 1105.6328504526. The cubic root of 1222424 is about 106.9236943956.

Adding to 1222424 its reverse (4242221), we get a palindrome (5464645).

The spelling of 1222424 in words is "one million, two hundred twenty-two thousand, four hundred twenty-four".