1421343 has 36 divisors (see below), whose sum is σ = 2614248. Its totient is φ = 735840.

The previous prime is 1421339. The next prime is 1421351. The reversal of 1421343 is 3431241.

It is not a de Polignac number, because 1421343 - 2² = 1421339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421243) 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 35 ways as a sum of consecutive naturals, for example, 4705 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (72618).

2^1421343 is an apocalyptic number.

1421343 is a deficient number, since it is larger than the sum of its proper divisors (1192905).

1421343 is a wasteful number, since it uses less digits than its factorization.

1421343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 314 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1421343 is about 1192.2009058879. The cubic root of 1421343 is about 112.4345100317.

Adding to 1421343 its reverse (3431241), we get a palindrome (4852584).

It can be divided in two parts, 1421 and 343, that added together give a square (1764 = 42²).

The spelling of 1421343 in words is "one million, four hundred twenty-one thousand, three hundred forty-three".