6381396 has 96 divisors (see below), whose sum is σ = 19783680. Its totient is φ = 1739232.

The previous prime is 6381379. The next prime is 6381407. The reversal of 6381396 is 6931836.

It is a happy number.

6381396 is a `hidden beast` number, since 638 + 13 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6381396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17205 + ... + 17571.

It is an arithmetic number, because the mean of its divisors is an integer number (206080).

Almost surely, 2^6381396 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 6381396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9891840).

6381396 is an abundant number, since it is smaller than the sum of its proper divisors (13402284).

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

6381396 is a wasteful number, since it uses less digits than its factorization.

6381396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 402 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6381396 is about 2526.1425137945. The cubic root of 6381396 is about 185.4834784994.

The spelling of 6381396 in words is "six million, three hundred eighty-one thousand, three hundred ninety-six".