8138330 has 8 divisors (see below), whose sum is σ = 14649012. Its totient is φ = 3255328.

The previous prime is 8138323. The next prime is 8138363. The reversal of 8138330 is 338318.

It can be written as a sum of positive squares in 2 ways, for example, as 7879249 + 259081 = 2807^2 + 509^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8138330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406907 + ... + 406926.

Almost surely, 2^8138330 is an apocalyptic number.

8138330 is a deficient number, since it is larger than the sum of its proper divisors (6510682).

8138330 is a wasteful number, since it uses less digits than its factorization.

8138330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813840.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 8138330 is about 2852.7758411764. The cubic root of 8138330 is about 201.1461689361.

The spelling of 8138330 in words is "eight million, one hundred thirty-eight thousand, three hundred thirty".