6448278 has 8 divisors (see below), whose sum is σ = 12896568. Its totient is φ = 2149424.

The previous prime is 6448271. The next prime is 6448289. The reversal of 6448278 is 8728446.

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

6448278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448271) 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, 537351 + ... + 537362.

It is an arithmetic number, because the mean of its divisors is an integer number (1612071).

Almost surely, 2^6448278 is an apocalyptic number.

6448278 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.

6448278 is a wasteful number, since it uses less digits than its factorization.

6448278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074718.

The product of its digits is 86016, while the sum is 39.

The square root of 6448278 is about 2539.3459787906. The cubic root of 6448278 is about 186.1292314989.

The spelling of 6448278 in words is "six million, four hundred forty-eight thousand, two hundred seventy-eight".