6406744 has 16 divisors (see below), whose sum is σ = 12066120. Its totient is φ = 3189120.

The previous prime is 6406727. The next prime is 6406747. The reversal of 6406744 is 4476046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406747) 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, 267 + ... + 3589.

Almost surely, 2^6406744 is an apocalyptic number.

It is an amenable number.

6406744 is a deficient number, since it is larger than the sum of its proper divisors (5659376).

6406744 is a wasteful number, since it uses less digits than its factorization.

6406744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 6406744 is about 2531.1546772175. The cubic root of 6406744 is about 185.7287447745.

The spelling of 6406744 in words is "six million, four hundred six thousand, seven hundred forty-four".