506488644 has 36 divisors (see below), whose sum is σ = 1299405744. Its totient is φ = 166308912.

The previous prime is 506488601. The next prime is 506488649. The reversal of 506488644 is 446884605.

506488644 is a `hidden beast` number, since 506 + 4 + 88 + 64 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 506488644.

It is not an unprimeable number, because it can be changed into a prime (506488649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102582 + ... + 107405.

It is an arithmetic number, because the mean of its divisors is an integer number (36094604).

Almost surely, 2^506488644 is an apocalyptic number.

It is an amenable number.

506488644 is an abundant number, since it is smaller than the sum of its proper divisors (792917100).

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

506488644 is a wasteful number, since it uses less digits than its factorization.

506488644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210064 (or 210059 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The square root of 506488644 is about 22505.3025751710. The cubic root of 506488644 is about 797.1191403456.

The spelling of 506488644 in words is "five hundred six million, four hundred eighty-eight thousand, six hundred forty-four".