8020243929 has 8 divisors (see below), whose sum is σ = 10777861120. Its totient is φ = 5304728016.

The previous prime is 8020243909. The next prime is 8020243961. The reversal of 8020243929 is 9293420208.

It is a happy number.

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

It is not a de Polignac number, because 8020243929 - 2⁵ = 8020243897 is a prime.

It is a super-2 number, since 2×8020243929² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8020243909) 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 7 ways as a sum of consecutive naturals, for example, 10524874 + ... + 10525635.

It is an arithmetic number, because the mean of its divisors is an integer number (1347232640).

Almost surely, 2^8020243929 is an apocalyptic number.

It is an amenable number.

8020243929 is a deficient number, since it is larger than the sum of its proper divisors (2757617191).

8020243929 is a wasteful number, since it uses less digits than its factorization.

8020243929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21050639.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 8020243929 is about 89555.8146018448. The cubic root of 8020243929 is about 2001.6855731059.

The spelling of 8020243929 in words is "eight billion, twenty million, two hundred forty-three thousand, nine hundred twenty-nine".