1276224 has 84 divisors (see below), whose sum is σ = 3742944. Its totient is φ = 382976.

The previous prime is 1276213. The next prime is 1276237. The reversal of 1276224 is 4226721.

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

It is a junction number, because it is equal to n+sod(n) for n = 1276194 and 1276203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55477 + ... + 55499.

2^1276224 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 1276224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871472).

1276224 is an abundant number, since it is smaller than the sum of its proper divisors (2466720).

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

1276224 is a wasteful number, since it uses less digits than its factorization.

1276224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 45 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 1276224 is about 1129.7008453569. The cubic root of 1276224 is about 108.4698324108.

The spelling of 1276224 in words is "one million, two hundred seventy-six thousand, two hundred twenty-four".