490347666 has 12 divisors (see below), whose sum is σ = 1062419982. Its totient is φ = 163449216.

The previous prime is 490347629. The next prime is 490347667. The reversal of 490347666 is 666743094.

It can be written as a sum of positive squares in only one way, i.e., 331058025 + 159289641 = 18195^2 + 12621^2 .

It is not an unprimeable number, because it can be changed into a prime (490347667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13620751 + ... + 13620786.

Almost surely, 2^490347666 is an apocalyptic number.

490347666 is an abundant number, since it is smaller than the sum of its proper divisors (572072316).

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

490347666 is a wasteful number, since it uses less digits than its factorization.

490347666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27241545 (or 27241542 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The square root of 490347666 is about 22143.7952031715. The cubic root of 490347666 is about 788.5599284656.

The spelling of 490347666 in words is "four hundred ninety million, three hundred forty-seven thousand, six hundred sixty-six".