7241421 has 8 divisors (see below), whose sum is σ = 10533024. Its totient is φ = 4388720.

The previous prime is 7241393. The next prime is 7241441. The reversal of 7241421 is 1241427.

It is a happy number.

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 7241421 - 2⁶ = 7241357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7241441) 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, 109686 + ... + 109751.

It is an arithmetic number, because the mean of its divisors is an integer number (1316628).

Almost surely, 2^7241421 is an apocalyptic number.

It is an amenable number.

7241421 is a deficient number, since it is larger than the sum of its proper divisors (3291603).

7241421 is a wasteful number, since it uses less digits than its factorization.

7241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219451.

The product of its digits is 448, while the sum is 21.

The square root of 7241421 is about 2690.9888517049. The cubic root of 7241421 is about 193.4674610938.

Adding to 7241421 its reverse (1241427), we get a palindrome (8482848).

It can be divided in two parts, 724 and 1421, that added together give a triangular number (2145 = T₆₅).

The spelling of 7241421 in words is "seven million, two hundred forty-one thousand, four hundred twenty-one".