6381672 has 64 divisors (see below), whose sum is σ = 18178560. Its totient is φ = 1848000.

The previous prime is 6381671. The next prime is 6381679. The reversal of 6381672 is 2761836.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6381671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5547 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (284040).

Almost surely, 2^6381672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6381672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9089280).

6381672 is an abundant number, since it is smaller than the sum of its proper divisors (11796888).

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

6381672 is a wasteful number, since it uses less digits than its factorization.

6381672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1090 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 6381672 is about 2526.1971419507. The cubic root of 6381672 is about 185.4861525591.

The spelling of 6381672 in words is "six million, three hundred eighty-one thousand, six hundred seventy-two".