6381536 has 48 divisors (see below), whose sum is σ = 14837760. Its totient is φ = 2643840.

The previous prime is 6381523. The next prime is 6381547. The reversal of 6381536 is 6351836.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6485 + ... + 7403.

It is an arithmetic number, because the mean of its divisors is an integer number (309120).

Almost surely, 2^6381536 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 6381536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7418880).

6381536 is an abundant number, since it is smaller than the sum of its proper divisors (8456224).

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

6381536 is a wasteful number, since it uses less digits than its factorization.

6381536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 959 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 6381536 is about 2526.1702238765. The cubic root of 6381536 is about 185.4848349161.

The spelling of 6381536 in words is "six million, three hundred eighty-one thousand, five hundred thirty-six".