1122048 has 54 divisors (see below), whose sum is σ = 3241784. Its totient is φ = 373248.

The previous prime is 1122041. The next prime is 1122053. The reversal of 1122048 is 8402211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1122048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2061 + ... + 2547.

2^1122048 is an apocalyptic number.

1122048 is a gapful number since it is divisible by the number (18) 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 1122048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620892).

1122048 is an abundant number, since it is smaller than the sum of its proper divisors (2119736).

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

1122048 is an equidigital number, since it uses as much as digits as its factorization.

1122048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1122048 is about 1059.2676715543. The cubic root of 1122048 is about 103.9131424697.

Adding to 1122048 its reverse (8402211), we get a palindrome (9524259).

The spelling of 1122048 in words is "one million, one hundred twenty-two thousand, forty-eight".