1123626 has 32 divisors (see below), whose sum is σ = 2654208. Its totient is φ = 310320.

The previous prime is 1123621. The next prime is 1123631. The reversal of 1123626 is 6263211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1123621) and next prime (1123631).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1123621) 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, 871 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (82944).

2^1123626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327104).

1123626 is an abundant number, since it is smaller than the sum of its proper divisors (1530582).

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

1123626 is a wasteful number, since it uses less digits than its factorization.

1123626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its digits is 432, while the sum is 21.

The square root of 1123626 is about 1060.0122640800. The cubic root of 1123626 is about 103.9618326415.

Adding to 1123626 its reverse (6263211), we get a palindrome (7386837).

The spelling of 1123626 in words is "one million, one hundred twenty-three thousand, six hundred twenty-six".