6478144 has 14 divisors (see below), whose sum is σ = 12855194. Its totient is φ = 3239040.

The previous prime is 6478117. The next prime is 6478187. The reversal of 6478144 is 4418746.

6478144 = T₂₅₂ + T₂₅₃ + ... + T₃₇₉.

It can be written as a sum of positive squares in only one way, i.e., 3655744 + 2822400 = 1912^2 + 1680^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50547 + ... + 50674.

Almost surely, 2^6478144 is an apocalyptic number.

6478144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6478144 is a deficient number, since it is larger than the sum of its proper divisors (6377050).

6478144 is a wasteful number, since it uses less digits than its factorization.

6478144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101233 (or 101223 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 6478144 is about 2545.2198333346. The cubic root of 6478144 is about 186.4161492022.

The spelling of 6478144 in words is "six million, four hundred seventy-eight thousand, one hundred forty-four".