4547239438 has 16 divisors (see below), whose sum is σ = 7796590560. Its totient is φ = 1948486176.

The previous prime is 4547239421. The next prime is 4547239451. The reversal of 4547239438 is 8349327454.

It is a junction number, because it is equal to n+sod(n) for n = 4547239391 and 4547239400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69720 + ... + 118132.

It is an arithmetic number, because the mean of its divisors is an integer number (487286910).

Almost surely, 2^4547239438 is an apocalyptic number.

4547239438 is a deficient number, since it is larger than the sum of its proper divisors (3249351122).

4547239438 is a wasteful number, since it uses less digits than its factorization.

4547239438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55131.

The product of its digits is 2903040, while the sum is 49.

The square root of 4547239438 is about 67433.2220644987. Note that the first 3 decimals coincide. The cubic root of 4547239438 is about 1656.7206072813.

The spelling of 4547239438 in words is "four billion, five hundred forty-seven million, two hundred thirty-nine thousand, four hundred thirty-eight".