6400338 has 16 divisors (see below), whose sum is σ = 14629440. Its totient is φ = 1828656.

The previous prime is 6400259. The next prime is 6400349. The reversal of 6400338 is 8330046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76153 + ... + 76236.

It is an arithmetic number, because the mean of its divisors is an integer number (914340).

Almost surely, 2^6400338 is an apocalyptic number.

6400338 is an abundant number, since it is smaller than the sum of its proper divisors (8229102).

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

6400338 is a wasteful number, since it uses less digits than its factorization.

6400338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152401.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6400338 is about 2529.8889303683. Note that the first 3 decimals coincide. The cubic root of 6400338 is about 185.6668217391. Note that the first 3 decimals are identical.

The spelling of 6400338 in words is "six million, four hundred thousand, three hundred thirty-eight".