6393138 has 8 divisors (see below), whose sum is σ = 12786288. Its totient is φ = 2131044.

The previous prime is 6393131. The next prime is 6393169. The reversal of 6393138 is 8313936.

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

6393138 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6393099 and 6393108.

It is not an unprimeable number, because it can be changed into a prime (6393131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532756 + ... + 532767.

It is an arithmetic number, because the mean of its divisors is an integer number (1598286).

Almost surely, 2^6393138 is an apocalyptic number.

6393138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6393138 is a wasteful number, since it uses less digits than its factorization.

6393138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065528.

The product of its digits is 11664, while the sum is 33.

The square root of 6393138 is about 2528.4655425772. The cubic root of 6393138 is about 185.5971742349.

The spelling of 6393138 in words is "six million, three hundred ninety-three thousand, one hundred thirty-eight".