1224450 has 48 divisors (see below), whose sum is σ = 3377760. Its totient is φ = 326160.

The previous prime is 1224439. The next prime is 1224473. The reversal of 1224450 is 544221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 897 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (70370).

2^1224450 is an apocalyptic number.

1224450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688880).

1224450 is an abundant number, since it is smaller than the sum of its proper divisors (2153310).

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

1224450 is a wasteful number, since it uses less digits than its factorization.

1224450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1224450 is about 1106.5486884905. The cubic root of 1224450 is about 106.9827322413.

Adding to 1224450 its reverse (544221), we get a palindrome (1768671).

The spelling of 1224450 in words is "one million, two hundred twenty-four thousand, four hundred fifty".