490455648 has 72 divisors (see below), whose sum is σ = 1446412968. Its totient is φ = 163482624.

The previous prime is 490455643. The next prime is 490455689. The reversal of 490455648 is 846554094.

490455648 is a `hidden beast` number, since 4 + 90 + 4 + 556 + 4 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490455643) 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, 23761 + ... + 39312.

It is an arithmetic number, because the mean of its divisors is an integer number (20089069).

Almost surely, 2^490455648 is an apocalyptic number.

490455648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

490455648 is an abundant number, since it is smaller than the sum of its proper divisors (955957320).

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

490455648 is an equidigital number, since it uses as much as digits as its factorization.

490455648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63098 (or 63078 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 490455648 is about 22146.2332688880. The cubic root of 490455648 is about 788.6178085062.

The spelling of 490455648 in words is "four hundred ninety million, four hundred fifty-five thousand, six hundred forty-eight".