1340089 has 8 divisors (see below), whose sum is σ = 1421280. Its totient is φ = 1260000.

The previous prime is 1340083. The next prime is 1340107. The reversal of 1340089 is 9800431.

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 1340089 - 2⁹ = 1339577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340083) 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 7 ways as a sum of consecutive naturals, for example, 4629 + ... + 4909.

It is an arithmetic number, because the mean of its divisors is an integer number (177660).

2^1340089 is an apocalyptic number.

1340089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1340089 is a deficient number, since it is larger than the sum of its proper divisors (81191).

1340089 is a wasteful number, since it uses less digits than its factorization.

1340089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1340089 is about 1157.6221317857. The cubic root of 1340089 is about 110.2498178911.

The spelling of 1340089 in words is "one million, three hundred forty thousand, eighty-nine".