1123455344 has 40 divisors (see below), whose sum is σ = 2414845440. Its totient is φ = 502001600.

The previous prime is 1123455323. The next prime is 1123455349. The reversal of 1123455344 is 4435543211.

It is a self number, because there is not a number n which added to its sum of digits gives 1123455344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123455349) 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, 43712 + ... + 64479.

It is an arithmetic number, because the mean of its divisors is an integer number (60371136).

Almost surely, 2^1123455344 is an apocalyptic number.

It is an amenable number.

1123455344 is an abundant number, since it is smaller than the sum of its proper divisors (1291390096).

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

1123455344 is a wasteful number, since it uses less digits than its factorization.

1123455344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108269 (or 108263 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 1123455344 is about 33517.9853809861. The cubic root of 1123455344 is about 1039.5656914372.

Adding to 1123455344 its reverse (4435543211), we get a palindrome (5558998555).

The spelling of 1123455344 in words is "one billion, one hundred twenty-three million, four hundred fifty-five thousand, three hundred forty-four".