1223632 has 20 divisors (see below), whose sum is σ = 2448256. Its totient is φ = 591840.

The previous prime is 1223603. The next prime is 1223633. The reversal of 1223632 is 2363221.

1223632 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738 + ... + 1729.

2^1223632 is an apocalyptic number.

It is an amenable number.

1223632 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1223632 is a wasteful number, since it uses less digits than its factorization.

1223632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2500 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 1223632 is about 1106.1790090216. The cubic root of 1223632 is about 106.9589034828.

Adding to 1223632 its reverse (2363221), we get a palindrome (3586853).

The spelling of 1223632 in words is "one million, two hundred twenty-three thousand, six hundred thirty-two".