6459728 has 60 divisors (see below), whose sum is σ = 14618112. Its totient is φ = 2741760.

The previous prime is 6459707. The next prime is 6459731. The reversal of 6459728 is 8279546.

Its product of digits (120960) is a multiple of the sum of its prime factors (180).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50801 + ... + 50927.

Almost surely, 2^6459728 is an apocalyptic number.

6459728 is a gapful number since it is divisible by the number (68) 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 6459728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7309056).

6459728 is an abundant number, since it is smaller than the sum of its proper divisors (8158384).

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

6459728 is a wasteful number, since it uses less digits than its factorization.

6459728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 157 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 6459728 is about 2541.5994963802. The cubic root of 6459728 is about 186.2393342540.

The spelling of 6459728 in words is "six million, four hundred fifty-nine thousand, seven hundred twenty-eight".