7304421 has 8 divisors (see below), whose sum is σ = 9836064. Its totient is φ = 4821200.

The previous prime is 7304399. The next prime is 7304431. The reversal of 7304421 is 1244037.

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 7304421 - 2⁵ = 7304389 is a prime.

It is a super-2 number, since 2×7304421² = 106709132290482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7304431) 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, 11751 + ... + 12356.

It is an arithmetic number, because the mean of its divisors is an integer number (1229508).

Almost surely, 2^7304421 is an apocalyptic number.

It is an amenable number.

7304421 is a deficient number, since it is larger than the sum of its proper divisors (2531643).

7304421 is a wasteful number, since it uses less digits than its factorization.

7304421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24211.

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

The square root of 7304421 is about 2702.6692361441. The cubic root of 7304421 is about 194.0268942769.

Adding to 7304421 its reverse (1244037), we get a palindrome (8548458).

It can be divided in two parts, 730 and 4421, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 7304421 in words is "seven million, three hundred four thousand, four hundred twenty-one".