6399258 has 16 divisors (see below), whose sum is σ = 13016160. Its totient is φ = 2096816.

The previous prime is 6399251. The next prime is 6399269. The reversal of 6399258 is 8529936.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6399251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8685 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (813510).

Almost surely, 2^6399258 is an apocalyptic number.

6399258 is an abundant number, since it is smaller than the sum of its proper divisors (6616902).

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

6399258 is a wasteful number, since it uses less digits than its factorization.

6399258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141.

The product of its digits is 116640, while the sum is 42.

The square root of 6399258 is about 2529.6754732574. The cubic root of 6399258 is about 185.6563779445.

The spelling of 6399258 in words is "six million, three hundred ninety-nine thousand, two hundred fifty-eight".