1126404 has 36 divisors (see below), whose sum is σ = 2895984. Its totient is φ = 369072.

The previous prime is 1126399. The next prime is 1126421. The reversal of 1126404 is 4046211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2179 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (80444).

2^1126404 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 1126404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447992).

1126404 is an abundant number, since it is smaller than the sum of its proper divisors (1769580).

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

1126404 is a wasteful number, since it uses less digits than its factorization.

1126404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1126404 is about 1061.3218173580. The cubic root of 1126404 is about 104.0474389100.

The spelling of 1126404 in words is "one million, one hundred twenty-six thousand, four hundred four".