1404394 has 8 divisors (see below), whose sum is σ = 2146500. Its totient is φ = 688896.

The previous prime is 1404391. The next prime is 1404397. The reversal of 1404394 is 4934041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1404391) and next prime (1404397).

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 169 = 1185^2 + 13^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1404391) 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 3 ways as a sum of consecutive naturals, for example, 6519 + ... + 6730.

2^1404394 is an apocalyptic number.

1404394 is a deficient number, since it is larger than the sum of its proper divisors (742106).

1404394 is a wasteful number, since it uses less digits than its factorization.

1404394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13304.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1404394 is about 1185.0713058715. The cubic root of 1404394 is about 111.9858081508.

The spelling of 1404394 in words is "one million, four hundred four thousand, three hundred ninety-four".