498566660 has 12 divisors (see below), whose sum is σ = 1046990028. Its totient is φ = 199426656.

The previous prime is 498566657. The next prime is 498566693. The reversal of 498566660 is 66665894.

It can be written as a sum of positive squares in 2 ways, for example, as 151191616 + 347375044 = 12296^2 + 18638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 498566599 and 498566608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12464147 + ... + 12464186.

It is an arithmetic number, because the mean of its divisors is an integer number (87249169).

Almost surely, 2^498566660 is an apocalyptic number.

It is an amenable number.

498566660 is an abundant number, since it is smaller than the sum of its proper divisors (548423368).

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

498566660 is a wasteful number, since it uses less digits than its factorization.

498566660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24928342 (or 24928340 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 498566660 is about 22328.6063156660. The cubic root of 498566660 is about 792.9413716292.

The spelling of 498566660 in words is "four hundred ninety-eight million, five hundred sixty-six thousand, six hundred sixty".