4492943021 has 16 divisors (see below), whose sum is σ = 5265621504. Its totient is φ = 3753361584.

The previous prime is 4492943003. The next prime is 4492943029. The reversal of 4492943021 is 1203492944.

It is not a de Polignac number, because 4492943021 - 2¹⁰ = 4492941997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4492943029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124586 + ... + 156548.

It is an arithmetic number, because the mean of its divisors is an integer number (329101344).

Almost surely, 2^4492943021 is an apocalyptic number.

It is an amenable number.

4492943021 is a deficient number, since it is larger than the sum of its proper divisors (772678483).

4492943021 is a wasteful number, since it uses less digits than its factorization.

4492943021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32480.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 4492943021 is about 67029.4190710318. The cubic root of 4492943021 is about 1650.1001495379.

The spelling of 4492943021 in words is "four billion, four hundred ninety-two million, nine hundred forty-three thousand, twenty-one".