494701728 has 72 divisors (see below), whose sum is σ = 1317986208. Its totient is φ = 162473472.

The previous prime is 494701723. The next prime is 494701741. The reversal of 494701728 is 827107494.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 494701728.

It is not an unprimeable number, because it can be changed into a prime (494701721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511101 + ... + 512067.

It is an arithmetic number, because the mean of its divisors is an integer number (18305364).

Almost surely, 2^494701728 is an apocalyptic number.

494701728 is a gapful number since it is divisible by the number (48) 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 494701728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658993104).

494701728 is an abundant number, since it is smaller than the sum of its proper divisors (823284480).

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

494701728 is an equidigital number, since it uses as much as digits as its factorization.

494701728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 494701728 is about 22241.8912864891. The cubic root of 494701728 is about 790.8870706417.

The spelling of 494701728 in words is "four hundred ninety-four million, seven hundred one thousand, seven hundred twenty-eight".