1404345 has 16 divisors (see below), whose sum is σ = 2261952. Its totient is φ = 744000.

The previous prime is 1404323. The next prime is 1404367. The reversal of 1404345 is 5434041.

It is an interprime number because it is at equal distance from previous prime (1404323) and next prime (1404367).

It is not a de Polignac number, because 1404345 - 2⁹ = 1403833 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3579 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (141372).

2^1404345 is an apocalyptic number.

1404345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1404345 is a deficient number, since it is larger than the sum of its proper divisors (857607).

1404345 is a wasteful number, since it uses less digits than its factorization.

1404345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1404345 is about 1185.0506318297. The cubic root of 1404345 is about 111.9845057222.

Adding to 1404345 its reverse (5434041), we get a palindrome (6838386).

The spelling of 1404345 in words is "one million, four hundred four thousand, three hundred forty-five".