1113424 has 40 divisors (see below), whose sum is σ = 2390472. Its totient is φ = 499200.

The previous prime is 1113421. The next prime is 1113451. The reversal of 1113424 is 4243111.

It can be written as a sum of positive squares in 4 ways, for example, as 360000 + 753424 = 600^2 + 868^2 .

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1113398 and 1113407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113421) 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, 10974 + ... + 11074.

2^1113424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195236).

1113424 is an abundant number, since it is smaller than the sum of its proper divisors (1277048).

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

1113424 is a wasteful number, since it uses less digits than its factorization.

1113424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 169 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 1113424 is about 1055.1890825819. The cubic root of 1113424 is about 103.6462338921.

Adding to 1113424 its reverse (4243111), we get a palindrome (5356535).

The spelling of 1113424 in words is "one million, one hundred thirteen thousand, four hundred twenty-four".