4045047321 has 16 divisors (see below), whose sum is σ = 6171084800. Its totient is φ = 2308754448.

The previous prime is 4045047319. The next prime is 4045047361. The reversal of 4045047321 is 1237405404.

It is not a de Polignac number, because 4045047321 - 2¹ = 4045047319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4045047301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94081 + ... + 130158.

It is an arithmetic number, because the mean of its divisors is an integer number (385692800).

Almost surely, 2^4045047321 is an apocalyptic number.

It is an amenable number.

4045047321 is a deficient number, since it is larger than the sum of its proper divisors (2126037479).

4045047321 is a wasteful number, since it uses less digits than its factorization.

4045047321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225108.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 4045047321 is about 63600.6864821442. The cubic root of 4045047321 is about 1593.3378348126.

The spelling of 4045047321 in words is "four billion, forty-five million, forty-seven thousand, three hundred twenty-one".