6459618 has 32 divisors (see below), whose sum is σ = 14253120. Its totient is φ = 1935360.

The previous prime is 6459617. The next prime is 6459623. The reversal of 6459618 is 8169546.

It is not an unprimeable number, because it can be changed into a prime (6459613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5898 + ... + 6906.

It is an arithmetic number, because the mean of its divisors is an integer number (445410).

Almost surely, 2^6459618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6459618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7126560).

6459618 is an abundant number, since it is smaller than the sum of its proper divisors (7793502).

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

6459618 is a wasteful number, since it uses less digits than its factorization.

6459618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

The product of its digits is 51840, while the sum is 39.

The square root of 6459618 is about 2541.5778563719. The cubic root of 6459618 is about 186.2382771175.

The spelling of 6459618 in words is "six million, four hundred fifty-nine thousand, six hundred eighteen".