7344021 has 4 divisors (see below), whose sum is σ = 9792032. Its totient is φ = 4896012.

The previous prime is 7344011. The next prime is 7344041. The reversal of 7344021 is 1204437.

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 not a de Polignac number, because 7344021 - 2⁷ = 7343893 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7344011) 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 3 ways as a sum of consecutive naturals, for example, 1224001 + ... + 1224006.

It is an arithmetic number, because the mean of its divisors is an integer number (2448008).

Almost surely, 2^7344021 is an apocalyptic number.

It is an amenable number.

7344021 is a deficient number, since it is larger than the sum of its proper divisors (2448011).

7344021 is a wasteful number, since it uses less digits than its factorization.

7344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448010.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7344021 is about 2709.9854243150. The cubic root of 7344021 is about 194.3768933484.

Adding to 7344021 its reverse (1204437), we get a palindrome (8548458).

The spelling of 7344021 in words is "seven million, three hundred forty-four thousand, twenty-one".