1123342400 has 84 divisors (see below), whose sum is σ = 2784561360. Its totient is φ = 446016000.

The previous prime is 1123342397. The next prime is 1123342417. The reversal of 1123342400 is 42433211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219875 + ... + 224925.

It is an arithmetic number, because the mean of its divisors is an integer number (33149540).

Almost surely, 2^1123342400 is an apocalyptic number.

1123342400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123342400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392280680).

1123342400 is an abundant number, since it is smaller than the sum of its proper divisors (1661218960).

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

1123342400 is a wasteful number, since it uses less digits than its factorization.

1123342400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5197 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1123342400 is about 33516.3005118405. The cubic root of 1123342400 is about 1039.5308534875.

Adding to 1123342400 its reverse (42433211), we get a palindrome (1165775611).

The spelling of 1123342400 in words is "one billion, one hundred twenty-three million, three hundred forty-two thousand, four hundred".