6438574 has 8 divisors (see below), whose sum is σ = 10077840. Its totient is φ = 3079296.

The previous prime is 6438571. The next prime is 6438581. The reversal of 6438574 is 4758346.

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 (6438571) 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, 69939 + ... + 70030.

It is an arithmetic number, because the mean of its divisors is an integer number (1259730).

Almost surely, 2^6438574 is an apocalyptic number.

6438574 is a deficient number, since it is larger than the sum of its proper divisors (3639266).

6438574 is a wasteful number, since it uses less digits than its factorization.

6438574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139994.

The product of its digits is 80640, while the sum is 37.

The square root of 6438574 is about 2537.4345311751. The cubic root of 6438574 is about 186.0358161267.

The spelling of 6438574 in words is "six million, four hundred thirty-eight thousand, five hundred seventy-four".