1404606 has 32 divisors (see below), whose sum is σ = 3276288. Its totient is φ = 393120.

The previous prime is 1404583. The next prime is 1404617. The reversal of 1404606 is 6064041.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1911 + ... + 2541.

It is an arithmetic number, because the mean of its divisors is an integer number (102384).

2^1404606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638144).

1404606 is an abundant number, since it is smaller than the sum of its proper divisors (1871682).

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

1404606 is a wasteful number, since it uses less digits than its factorization.

1404606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1404606 is about 1185.1607485907. The cubic root of 1404606 is about 111.9914427986.

Adding to 1404606 its reverse (6064041), we get a palindrome (7468647).

The spelling of 1404606 in words is "one million, four hundred four thousand, six hundred six".