1343889 has 24 divisors (see below), whose sum is σ = 2121600. Its totient is φ = 816480.

The previous prime is 1343887. The next prime is 1343893. The reversal of 1343889 is 9883431.

It is not a de Polignac number, because 1343889 - 2¹ = 1343887 is a prime.

It is a Curzon number.

1343889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1343887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4824 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (88400).

2^1343889 is an apocalyptic number.

1343889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1343889 is a deficient number, since it is larger than the sum of its proper divisors (777711).

1343889 is a wasteful number, since it uses less digits than its factorization.

1343889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 322 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1343889 is about 1159.2622654085. The cubic root of 1343889 is about 110.3539288706.

The spelling of 1343889 in words is "one million, three hundred forty-three thousand, eight hundred eighty-nine".