6407144 has 16 divisors (see below), whose sum is σ = 12428100. Its totient is φ = 3092992.

The previous prime is 6407131. The next prime is 6407189. The reversal of 6407144 is 4417046.

It can be written as a sum of positive squares in 2 ways, for example, as 5579044 + 828100 = 2362^2 + 910^2 .

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13577 + ... + 14040.

Almost surely, 2^6407144 is an apocalyptic number.

It is an amenable number.

6407144 is a deficient number, since it is larger than the sum of its proper divisors (6020956).

6407144 is a wasteful number, since it uses less digits than its factorization.

6407144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27652 (or 27648 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 6407144 is about 2531.2336913055. The cubic root of 6407144 is about 185.7326099699.

The spelling of 6407144 in words is "six million, four hundred seven thousand, one hundred forty-four".