4039921347 has 64 divisors (see below), whose sum is σ = 6920847360. Its totient is φ = 2035180800.

The previous prime is 4039921313. The next prime is 4039921351. The reversal of 4039921347 is 7431299304.

4039921347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4039921347 - 2⁸ = 4039921091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4039921299 and 4039921308.

It is not an unprimeable number, because it can be changed into a prime (4039921307) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1694118 + ... + 1696500.

It is an arithmetic number, because the mean of its divisors is an integer number (108138240).

Almost surely, 2^4039921347 is an apocalyptic number.

4039921347 is a deficient number, since it is larger than the sum of its proper divisors (2880926013).

4039921347 is a wasteful number, since it uses less digits than its factorization.

4039921347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 4039921347 is about 63560.3756046171. The cubic root of 4039921347 is about 1592.6645125932.

The spelling of 4039921347 in words is "four billion, thirty-nine million, nine hundred twenty-one thousand, three hundred forty-seven".