1342389 has 4 divisors (see below), whose sum is σ = 1789856. Its totient is φ = 894924.

The previous prime is 1342379. The next prime is 1342403. The reversal of 1342389 is 9832431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1342389 - 2⁷ = 1342261 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342339) 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, 223729 + ... + 223734.

It is an arithmetic number, because the mean of its divisors is an integer number (447464).

2^1342389 is an apocalyptic number.

It is an amenable number.

1342389 is a deficient number, since it is larger than the sum of its proper divisors (447467).

1342389 is an equidigital number, since it uses as much as digits as its factorization.

1342389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447466.

The product of its digits is 5184, while the sum is 30.

The square root of 1342389 is about 1158.6151215999. The cubic root of 1342389 is about 110.3128559055.

The spelling of 1342389 in words is "one million, three hundred forty-two thousand, three hundred eighty-nine".