4494003921 has 24 divisors (see below), whose sum is σ = 7085482560. Its totient is φ = 2722092000.

The previous prime is 4494003919. The next prime is 4494003923. The reversal of 4494003921 is 1293004944.

It is an interprime number because it is at equal distance from previous prime (4494003919) and next prime (4494003923).

It is not a de Polignac number, because 4494003921 - 2¹ = 4494003919 is a prime.

It is a super-3 number, since 3×4494003921³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4494003923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176260 + ... + 200138.

It is an arithmetic number, because the mean of its divisors is an integer number (295228440).

Almost surely, 2^4494003921 is an apocalyptic number.

It is an amenable number.

4494003921 is a deficient number, since it is larger than the sum of its proper divisors (2591478639).

4494003921 is a wasteful number, since it uses less digits than its factorization.

4494003921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25797 (or 25794 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 4494003921 is about 67037.3322932827. The cubic root of 4494003921 is about 1650.2300164182.

The spelling of 4494003921 in words is "four billion, four hundred ninety-four million, three thousand, nine hundred twenty-one".