6481830 has 16 divisors (see below), whose sum is σ = 15556464. Its totient is φ = 1728480.

The previous prime is 6481829. The next prime is 6481841. The reversal of 6481830 is 381846.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 216061 = 6481830 / (6 + 4 + 8 + 1 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108001 + ... + 108060.

It is an arithmetic number, because the mean of its divisors is an integer number (972279).

Almost surely, 2^6481830 is an apocalyptic number.

6481830 is an abundant number, since it is smaller than the sum of its proper divisors (9074634).

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

6481830 is a wasteful number, since it uses less digits than its factorization.

6481830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216071.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 6481830 is about 2545.9438328447. The cubic root of 6481830 is about 186.4514988149.

Subtracting from 6481830 its sum of digits (30), we obtain a triangular number (6481800 = T₃₆₀₀).

The spelling of 6481830 in words is "six million, four hundred eighty-one thousand, eight hundred thirty".