4384039021 has 8 divisors (see below), whose sum is σ = 4520714688. Its totient is φ = 4248780000.

The previous prime is 4384039019. The next prime is 4384039031. The reversal of 4384039021 is 1209304834.

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 4384039021 - 2¹ = 4384039019 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 (4384039031) 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, 347875 + ... + 360256.

It is an arithmetic number, because the mean of its divisors is an integer number (565089336).

Almost surely, 2^4384039021 is an apocalyptic number.

4384039021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4384039021 is a deficient number, since it is larger than the sum of its proper divisors (136675667).

4384039021 is a wasteful number, since it uses less digits than its factorization.

4384039021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708323.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4384039021 is about 66212.0760964343. The cubic root of 4384039021 is about 1636.6587512021.

The spelling of 4384039021 in words is "four billion, three hundred eighty-four million, thirty-nine thousand, twenty-one".