6381900 has 108 divisors (see below), whose sum is σ = 22883952. Its totient is φ = 1457280.

The previous prime is 6381899. The next prime is 6381911. The reversal of 6381900 is 91836.

It is a super-2 number, since 2×6381900² = 81457295220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5794 + ... + 6806.

Almost surely, 2^6381900 is an apocalyptic number.

6381900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6381900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11441976).

6381900 is an abundant number, since it is smaller than the sum of its proper divisors (16502052).

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

6381900 is a wasteful number, since it uses less digits than its factorization.

6381900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 6381900 is about 2526.2422686670. The cubic root of 6381900 is about 185.4883615068.

Subtracting from 6381900 its reverse (91836), we obtain a square (6290064 = 2508²).

The spelling of 6381900 in words is "six million, three hundred eighty-one thousand, nine hundred".