4020722843 has 4 divisors (see below), whose sum is σ = 4058299800. Its totient is φ = 3983145888.

The previous prime is 4020722813. The next prime is 4020722899. The reversal of 4020722843 is 3482270204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4020722843 - 2¹⁰ = 4020721819 is a prime.

It is a super-3 number, since 3×4020722843³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020722813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18788318 + ... + 18788531.

It is an arithmetic number, because the mean of its divisors is an integer number (1014574950).

Almost surely, 2^4020722843 is an apocalyptic number.

4020722843 is a deficient number, since it is larger than the sum of its proper divisors (37576957).

4020722843 is a wasteful number, since it uses less digits than its factorization.

4020722843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37576956.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 4020722843 is about 63409.1700229549. The cubic root of 4020722843 is about 1590.1376201702.

The spelling of 4020722843 in words is "four billion, twenty million, seven hundred twenty-two thousand, eight hundred forty-three".