1223584 has 12 divisors (see below), whose sum is σ = 2408994. Its totient is φ = 611776.

The previous prime is 1223569. The next prime is 1223587. The reversal of 1223584 is 4853221.

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 183184 = 1020^2 + 428^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1223587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19087 + ... + 19150.

2^1223584 is an apocalyptic number.

It is an amenable number.

1223584 is a deficient number, since it is larger than the sum of its proper divisors (1185410).

1223584 is an equidigital number, since it uses as much as digits as its factorization.

1223584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38247 (or 38239 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1223584 is about 1106.1573125013. The cubic root of 1223584 is about 106.9575048885.

The spelling of 1223584 in words is "one million, two hundred twenty-three thousand, five hundred eighty-four".