2343421 has 4 divisors (see below), whose sum is σ = 2383200. Its totient is φ = 2303644.

The previous prime is 2343413. The next prime is 2343449. The reversal of 2343421 is 1243432.

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 a cyclic number.

It is not a de Polignac number, because 2343421 - 2³ = 2343413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2343521) 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, 19801 + ... + 19918.

It is an arithmetic number, because the mean of its divisors is an integer number (595800).

2^2343421 is an apocalyptic number.

It is an amenable number.

2343421 is a deficient number, since it is larger than the sum of its proper divisors (39779).

2343421 is an equidigital number, since it uses as much as digits as its factorization.

2343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39778.

The product of its digits is 576, while the sum is 19.

The square root of 2343421 is about 1530.8236345184. The cubic root of 2343421 is about 132.8261054851.

Adding to 2343421 its reverse (1243432), we get a palindrome (3586853).

It can be divided in two parts, 234 and 3421, that added together give a triangular number (3655 = T₈₅).

The spelling of 2343421 in words is "two million, three hundred forty-three thousand, four hundred twenty-one".