1404355 has 4 divisors (see below), whose sum is σ = 1685232. Its totient is φ = 1123480.

The previous prime is 1404323. The next prime is 1404367. The reversal of 1404355 is 5534041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5534041 = 29 ⋅190829.

It is not a de Polignac number, because 1404355 - 2⁵ = 1404323 is a prime.

It is a Duffinian number.

1404355 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140431 + ... + 140440.

It is an arithmetic number, because the mean of its divisors is an integer number (421308).

2^1404355 is an apocalyptic number.

1404355 is a deficient number, since it is larger than the sum of its proper divisors (280877).

1404355 is an equidigital number, since it uses as much as digits as its factorization.

1404355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280876.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1404355 is about 1185.0548510512. The cubic root of 1404355 is about 111.9847715264.

Adding to 1404355 its reverse (5534041), we get a palindrome (6938396).

The spelling of 1404355 in words is "one million, four hundred four thousand, three hundred fifty-five".