7344421 has 8 divisors (see below), whose sum is σ = 8495424. Its totient is φ = 6218880.

The previous prime is 7344419. The next prime is 7344439. The reversal of 7344421 is 1244437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7344421 - 2¹ = 7344419 is a prime.

It is a d-powerful number, because it can be written as 7² + 3⁵ + 4⁶ + 4¹⁰ + 4¹¹ + 2²¹ + 1 .

7344421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7344451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5740 + ... + 6901.

It is an arithmetic number, because the mean of its divisors is an integer number (1061928).

Almost surely, 2^7344421 is an apocalyptic number.

It is an amenable number.

7344421 is a deficient number, since it is larger than the sum of its proper divisors (1151003).

7344421 is a wasteful number, since it uses less digits than its factorization.

7344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731.

The product of its digits is 2688, while the sum is 25.

The square root of 7344421 is about 2710.0592244451. The cubic root of 7344421 is about 194.3804222665.

Adding to 7344421 its reverse (1244437), we get a palindrome (8588858).

The spelling of 7344421 in words is "seven million, three hundred forty-four thousand, four hundred twenty-one".