3281199138 has 64 divisors (see below), whose sum is σ = 8823409920. Its totient is φ = 882337536.

The previous prime is 3281199079. The next prime is 3281199149. The reversal of 3281199138 is 8319911823.

3281199138 is a `hidden beast` number, since 328 + 1 + 199 + 138 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3281199093 and 3281199102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248881 + ... + 261732.

It is an arithmetic number, because the mean of its divisors is an integer number (137865780).

Almost surely, 2^3281199138 is an apocalyptic number.

3281199138 is an abundant number, since it is smaller than the sum of its proper divisors (5542210782).

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

3281199138 is a wasteful number, since it uses less digits than its factorization.

3281199138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510648 (or 510642 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 3281199138 is about 57281.7522252942. The cubic root of 3281199138 is about 1485.9728101890.

The spelling of 3281199138 in words is "three billion, two hundred eighty-one million, one hundred ninety-nine thousand, one hundred thirty-eight".