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BaseRepresentation
bin100100110000000000000
32021011212220
410212000000
5302013344
641451040
713143600
oct4460000
92234786
101204224
1175282a
124a0a80
13332178
14234c00
1518bc19
hex126000

1204224 has 84 divisors (see below), whose sum is σ = 3735324. Its totient is φ = 344064.

The previous prime is 1204219. The next prime is 1204243. The reversal of 1204224 is 4224021.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172029 + ... + 172035.

21204224 is an apocalyptic number.

1204224 is a gapful number since it is divisible by the number (14) 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 1204224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867662).

1204224 is an abundant number, since it is smaller than the sum of its proper divisors (2531100).

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

1204224 is an frugal number, since it uses more digits than its factorization.

1204224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1204224 is about 1097.3714047669. The cubic root of 1204224 is about 106.3903961784.

Adding to 1204224 its reverse (4224021), we get a palindrome (5428245).

The spelling of 1204224 in words is "one million, two hundred four thousand, two hundred twenty-four".