12344021 has 4 divisors (see below), whose sum is σ = 12546444. Its totient is φ = 12141600.

The previous prime is 12343979. The next prime is 12344041. The reversal of 12344021 is 12044321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 579121 + 11764900 = 761^2 + 3430^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344021 - 2⁶ = 12343957 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 (12344041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101120 + ... + 101241.

It is an arithmetic number, because the mean of its divisors is an integer number (3136611).

Almost surely, 2^12344021 is an apocalyptic number.

It is an amenable number.

12344021 is a deficient number, since it is larger than the sum of its proper divisors (202423).

12344021 is an equidigital number, since it uses as much as digits as its factorization.

12344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202422.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12344021 is about 3513.4058974164. The cubic root of 12344021 is about 231.1100779064.

Adding to 12344021 its reverse (12044321), we get a palindrome (24388342).

It can be divided in two parts, 123 and 44021, that added together give a palindrome (44144).

The spelling of 12344021 in words is "twelve million, three hundred forty-four thousand, twenty-one".