6438374 has 8 divisors (see below), whose sum is σ = 9680880. Its totient is φ = 3211416.

The previous prime is 6438373. The next prime is 6438379. The reversal of 6438374 is 4738346.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438373) by changing a digit.

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, 2789 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (1210110).

Almost surely, 2^6438374 is an apocalyptic number.

6438374 is a deficient number, since it is larger than the sum of its proper divisors (3242506).

6438374 is a wasteful number, since it uses less digits than its factorization.

6438374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7774.

The product of its digits is 48384, while the sum is 35.

The square root of 6438374 is about 2537.3951209853. The cubic root of 6438374 is about 186.0338898436.

The spelling of 6438374 in words is "six million, four hundred thirty-eight thousand, three hundred seventy-four".