1123724 has 24 divisors (see below), whose sum is σ = 2284800. Its totient is φ = 473616.

The previous prime is 1123709. The next prime is 1123729. The reversal of 1123724 is 4273211.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1123696 and 1123705.

It is not an unprimeable number, because it can be changed into a prime (1123729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (95200).

2^1123724 is an apocalyptic number.

1123724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1123724 is an abundant number, since it is smaller than the sum of its proper divisors (1161076).

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

1123724 is a wasteful number, since it uses less digits than its factorization.

1123724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 675 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 1123724 is about 1060.0584889524. The cubic root of 1123724 is about 103.9648549886.

Adding to 1123724 its reverse (4273211), we get a palindrome (5396935).

The spelling of 1123724 in words is "one million, one hundred twenty-three thousand, seven hundred twenty-four".