2158044321 has 8 divisors (see below), whose sum is σ = 2909723040. Its totient is φ = 1422530912.

The previous prime is 2158044319. The next prime is 2158044341. The reversal of 2158044321 is 1234408512.

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 2158044321 - 2¹ = 2158044319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2158044341) 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, 4041015 + ... + 4041548.

It is an arithmetic number, because the mean of its divisors is an integer number (363715380).

Almost surely, 2^2158044321 is an apocalyptic number.

It is an amenable number.

2158044321 is a deficient number, since it is larger than the sum of its proper divisors (751678719).

2158044321 is an equidigital number, since it uses as much as digits as its factorization.

2158044321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8082655.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2158044321 is about 46454.7556338423. The cubic root of 2158044321 is about 1292.2705681924.

The spelling of 2158044321 in words is "two billion, one hundred fifty-eight million, forty-four thousand, three hundred twenty-one".