6381320 has 32 divisors (see below), whose sum is σ = 15664320. Its totient is φ = 2320320.

The previous prime is 6381317. The next prime is 6381337. The reversal of 6381320 is 231836.

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, 6812 + ... + 7691.

It is an arithmetic number, because the mean of its divisors is an integer number (489510).

Almost surely, 2^6381320 is an apocalyptic number.

It is an amenable number.

6381320 is an abundant number, since it is smaller than the sum of its proper divisors (9283000).

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

6381320 is a wasteful number, since it uses less digits than its factorization.

6381320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14525 (or 14521 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 6381320 is about 2526.1274710513. The cubic root of 6381320 is about 185.4827421506.

The spelling of 6381320 in words is "six million, three hundred eighty-one thousand, three hundred twenty".