1004406 has 32 divisors (see below), whose sum is σ = 2204160. Its totient is φ = 303264.

The previous prime is 1004401. The next prime is 1004429. The reversal of 1004406 is 6044001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6081 + ... + 6243.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2^1004406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102080).

1004406 is an abundant number, since it is smaller than the sum of its proper divisors (1199754).

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

1004406 is a wasteful number, since it uses less digits than its factorization.

1004406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1004406 is about 1002.2005787266. The cubic root of 1004406 is about 100.1466514949.

Adding to 1004406 its reverse (6044001), we get a palindrome (7048407).

The spelling of 1004406 in words is "one million, four thousand, four hundred six".