1224732 has 12 divisors (see below), whose sum is σ = 2857736. Its totient is φ = 408240.

The previous prime is 1224709. The next prime is 1224739. The reversal of 1224732 is 2374221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1224699 and 1224708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224739) 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, 51019 + ... + 51042.

2^1224732 is an apocalyptic number.

1224732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224732 is an abundant number, since it is smaller than the sum of its proper divisors (1633004).

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

1224732 is a wasteful number, since it uses less digits than its factorization.

1224732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102068 (or 102066 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 1224732 is about 1106.6761043774. The cubic root of 1224732 is about 106.9909445855.

Adding to 1224732 its reverse (2374221), we get a palindrome (3598953).

The spelling of 1224732 in words is "one million, two hundred twenty-four thousand, seven hundred thirty-two".