4045579021 has 8 divisors (see below), whose sum is σ = 4414672800. Its totient is φ = 3676704240.

The previous prime is 4045578959. The next prime is 4045579037. The reversal of 4045579021 is 1209755404.

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

It is not a de Polignac number, because 4045579021 - 2¹³ = 4045570829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045579061) 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, 14851 + ... + 91168.

It is an arithmetic number, because the mean of its divisors is an integer number (551834100).

Almost surely, 2^4045579021 is an apocalyptic number.

It is an amenable number.

4045579021 is a deficient number, since it is larger than the sum of its proper divisors (369093779).

4045579021 is a wasteful number, since it uses less digits than its factorization.

4045579021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109499.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 4045579021 is about 63604.8663311228. The cubic root of 4045579021 is about 1593.4076436877.

The spelling of 4045579021 in words is "four billion, forty-five million, five hundred seventy-nine thousand, twenty-one".