6581842 has 8 divisors (see below), whose sum is σ = 10012032. Its totient is φ = 3244500.

The previous prime is 6581837. The next prime is 6581843. The reversal of 6581842 is 2481856.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6581842² = 86641288225928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6581798 and 6581807.

It is not an unprimeable number, because it can be changed into a prime (6581843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23034 + ... + 23317.

It is an arithmetic number, because the mean of its divisors is an integer number (1251504).

Almost surely, 2^6581842 is an apocalyptic number.

6581842 is a deficient number, since it is larger than the sum of its proper divisors (3430190).

6581842 is a wasteful number, since it uses less digits than its factorization.

6581842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46424.

The product of its digits is 15360, while the sum is 34.

The square root of 6581842 is about 2565.5100857334. The cubic root of 6581842 is about 187.4055654830.

It can be divided in two parts, 658 and 1842, that added together give a square (2500 = 50²).

The spelling of 6581842 in words is "six million, five hundred eighty-one thousand, eight hundred forty-two".