490537728 has 72 divisors (see below), whose sum is σ = 1450626800. Its totient is φ = 163510272.

The previous prime is 490537727. The next prime is 490537739. The reversal of 490537728 is 827735094.

490537728 is a `hidden beast` number, since 4 + 90 + 537 + 7 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (490537727) 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 7 ways as a sum of consecutive naturals, for example, 28573 + ... + 42396.

Almost surely, 2^490537728 is an apocalyptic number.

490537728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

490537728 is an abundant number, since it is smaller than the sum of its proper divisors (960089072).

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

490537728 is an equidigital number, since it uses as much as digits as its factorization.

490537728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70994 (or 70974 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 490537728 is about 22148.0863281684. The cubic root of 490537728 is about 788.6617989869.

The spelling of 490537728 in words is "four hundred ninety million, five hundred thirty-seven thousand, seven hundred twenty-eight".