7340221 has 8 divisors (see below), whose sum is σ = 8443520. Its totient is φ = 6250608.

The previous prime is 7340183. The next prime is 7340227. The reversal of 7340221 is 1220437.

7340221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7340221 - 2¹³ = 7332029 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7340227) 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, 2241 + ... + 4438.

It is an arithmetic number, because the mean of its divisors is an integer number (1055440).

Almost surely, 2^7340221 is an apocalyptic number.

It is an amenable number.

7340221 is a deficient number, since it is larger than the sum of its proper divisors (1103299).

7340221 is a wasteful number, since it uses less digits than its factorization.

7340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 7340221 is about 2709.2842228161. The cubic root of 7340221 is about 194.3433622339.

Adding to 7340221 its reverse (1220437), we get a palindrome (8560658).

The spelling of 7340221 in words is "seven million, three hundred forty thousand, two hundred twenty-one".