1224828 has 48 divisors (see below), whose sum is σ = 3467520. Its totient is φ = 370800.

The previous prime is 1224823. The next prime is 1224851. The reversal of 1224828 is 8284221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (72240).

2^1224828 is an apocalyptic number.

1224828 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 1224828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733760).

1224828 is an abundant number, since it is smaller than the sum of its proper divisors (2242692).

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

1224828 is a wasteful number, since it uses less digits than its factorization.

1224828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1047 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 1224828 is about 1106.7194766516. The cubic root of 1224828 is about 106.9937399895.

It can be divided in two parts, 122 and 4828, that added together give a triangular number (4950 = T₉₉).

The spelling of 1224828 in words is "one million, two hundred twenty-four thousand, eight hundred twenty-eight".