4158321 has 8 divisors (see below), whose sum is σ = 5836320. Its totient is φ = 2626272.

The previous prime is 4158313. The next prime is 4158337. The reversal of 4158321 is 1238514.

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

It is not a de Polignac number, because 4158321 - 2³ = 4158313 is a prime.

4158321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4158291 and 4158300.

It is not an unprimeable number, because it can be changed into a prime (4158391) 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, 36420 + ... + 36533.

It is an arithmetic number, because the mean of its divisors is an integer number (729540).

Almost surely, 2^4158321 is an apocalyptic number.

It is an amenable number.

4158321 is a deficient number, since it is larger than the sum of its proper divisors (1677999).

4158321 is a wasteful number, since it uses less digits than its factorization.

4158321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72975.

The product of its digits is 960, while the sum is 24.

The square root of 4158321 is about 2039.1961651592. The cubic root of 4158321 is about 160.8073902571.

The spelling of 4158321 in words is "four million, one hundred fifty-eight thousand, three hundred twenty-one".