6385944 has 16 divisors (see below), whose sum is σ = 15964920. Its totient is φ = 2128640.

The previous prime is 6385943. The next prime is 6385987. The reversal of 6385944 is 4495836.

It is a super-2 number, since 2×6385944² = 81560561542272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6385943) 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, 133017 + ... + 133064.

Almost surely, 2^6385944 is an apocalyptic number.

It is an amenable number.

6385944 is an abundant number, since it is smaller than the sum of its proper divisors (9578976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6385944 is a wasteful number, since it uses less digits than its factorization.

6385944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266090 (or 266086 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 6385944 is about 2527.0425402039. The cubic root of 6385944 is about 185.5275325243.

It can be divided in two parts, 63859 and 44, that added together give a triangular number (63903 = T₃₅₇).

The spelling of 6385944 in words is "six million, three hundred eighty-five thousand, nine hundred forty-four".