9138405282 has 16 divisors (see below), whose sum is σ = 18527178720. Its totient is φ = 3004407072.

The previous prime is 9138405187. The next prime is 9138405317. The reversal of 9138405282 is 2825048319.

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, 10431532 + ... + 10432407.

It is an arithmetic number, because the mean of its divisors is an integer number (1157948670).

Almost surely, 2^9138405282 is an apocalyptic number.

9138405282 is an abundant number, since it is smaller than the sum of its proper divisors (9388773438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9138405282 is a wasteful number, since it uses less digits than its factorization.

9138405282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20864017.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 9138405282 is about 95595.0065746114. The cubic root of 9138405282 is about 2090.6923892014.

The spelling of 9138405282 in words is "nine billion, one hundred thirty-eight million, four hundred five thousand, two hundred eighty-two".