1123430 has 32 divisors (see below), whose sum is σ = 2522880. Its totient is φ = 349920.

The previous prime is 1123429. The next prime is 1123439. The reversal of 1123430 is 343211.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (78840).

2^1123430 is an apocalyptic number.

1123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123430 is an abundant number, since it is smaller than the sum of its proper divisors (1399450).

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

1123430 is a wasteful number, since it uses less digits than its factorization.

1123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1123430 is about 1059.9198082874. The cubic root of 1123430 is about 103.9557874200.

Adding to 1123430 its reverse (343211), we get a palindrome (1466641).

The spelling of 1123430 in words is "one million, one hundred twenty-three thousand, four hundred thirty".