1404185 has 4 divisors (see below), whose sum is σ = 1685028. Its totient is φ = 1123344.

The previous prime is 1404181. The next prime is 1404191. The reversal of 1404185 is 5814041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808201 + 595984 = 899^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404185 - 2² = 1404181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1404185.

It is not an unprimeable number, because it can be changed into a prime (1404181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140414 + ... + 140423.

It is an arithmetic number, because the mean of its divisors is an integer number (421257).

2^1404185 is an apocalyptic number.

It is an amenable number.

1404185 is a deficient number, since it is larger than the sum of its proper divisors (280843).

1404185 is an equidigital number, since it uses as much as digits as its factorization.

1404185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280842.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1404185 is about 1184.9831222427. The cubic root of 1404185 is about 111.9802526834.

The spelling of 1404185 in words is "one million, four hundred four thousand, one hundred eighty-five".