1292224 has 28 divisors (see below), whose sum is σ = 2614168. Its totient is φ = 633600.

The previous prime is 1292219. The next prime is 1292237. The reversal of 1292224 is 4222921.

It is a junction number, because it is equal to n+sod(n) for n = 1292195 and 1292204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739 + ... + 4069.

2^1292224 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 1292224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307084).

1292224 is an abundant number, since it is smaller than the sum of its proper divisors (1321944).

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

1292224 is an equidigital number, since it uses as much as digits as its factorization.

1292224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 394 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1292224 is about 1136.7603089482. The cubic root of 1292224 is about 108.9212460335.

The spelling of 1292224 in words is "one million, two hundred ninety-two thousand, two hundred twenty-four".