1224528 has 40 divisors (see below), whose sum is σ = 3208128. Its totient is φ = 402432.

The previous prime is 1224481. The next prime is 1224529. The reversal of 1224528 is 8254221.

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 = 1224498 and 1224507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4525 + ... + 4787.

2^1224528 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 1224528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604064).

1224528 is an abundant number, since it is smaller than the sum of its proper divisors (1983600).

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

1224528 is a wasteful number, since it uses less digits than its factorization.

1224528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 365 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 1224528 is about 1106.5839326504. The cubic root of 1224528 is about 106.9850038669.

Adding to 1224528 its reverse (8254221), we get a palindrome (9478749).

The spelling of 1224528 in words is "one million, two hundred twenty-four thousand, five hundred twenty-eight".