8390138 has 8 divisors (see below), whose sum is σ = 12737088. Its totient is φ = 4144444.

The previous prime is 8390093. The next prime is 8390143. The reversal of 8390138 is 8310938.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25106 + ... + 25437.

It is an arithmetic number, because the mean of its divisors is an integer number (1592136).

Almost surely, 2^8390138 is an apocalyptic number.

8390138 is a deficient number, since it is larger than the sum of its proper divisors (4346950).

8390138 is a wasteful number, since it uses less digits than its factorization.

8390138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50628.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8390138 is about 2896.5734929395. The cubic root of 8390138 is about 203.1996870281.

The spelling of 8390138 in words is "eight million, three hundred ninety thousand, one hundred thirty-eight".