1404445 has 8 divisors (see below), whose sum is σ = 1926144. Its totient is φ = 963024.

The previous prime is 1404439. The next prime is 1404467. The reversal of 1404445 is 5444041.

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

It is a cyclic number.

It is not a de Polignac number, because 1404445 - 2³ = 1404437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20029 + ... + 20098.

It is an arithmetic number, because the mean of its divisors is an integer number (240768).

2^1404445 is an apocalyptic number.

It is an amenable number.

1404445 is a deficient number, since it is larger than the sum of its proper divisors (521699).

1404445 is an equidigital number, since it uses as much as digits as its factorization.

1404445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40139.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1404445 is about 1185.0928233687. The cubic root of 1404445 is about 111.9871637075.

Adding to 1404445 its reverse (5444041), we get a palindrome (6848486).

It can be divided in two parts, 1404 and 445, that added together give a square (1849 = 43²).

The spelling of 1404445 in words is "one million, four hundred four thousand, four hundred forty-five".