1434409 has 4 divisors (see below), whose sum is σ = 1518804. Its totient is φ = 1350016.

The previous prime is 1434397. The next prime is 1434421. The reversal of 1434409 is 9044341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9044341 = 1459 ⋅6199.

It is an interprime number because it is at equal distance from previous prime (1434397) and next prime (1434421).

It can be written as a sum of positive squares in 2 ways, for example, as 1155625 + 278784 = 1075^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434409 - 2⁷ = 1434281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1434439) 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, 42172 + ... + 42205.

It is an arithmetic number, because the mean of its divisors is an integer number (379701).

2^1434409 is an apocalyptic number.

It is an amenable number.

1434409 is a deficient number, since it is larger than the sum of its proper divisors (84395).

1434409 is an equidigital number, since it uses as much as digits as its factorization.

1434409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84394.

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

The square root of 1434409 is about 1197.6681510335. The cubic root of 1434409 is about 112.7779857866. Note that the first 3 decimals are identical.

The spelling of 1434409 in words is "one million, four hundred thirty-four thousand, four hundred nine".