490209746 has 16 divisors (see below), whose sum is σ = 802728024. Its totient is φ = 223150464.

The previous prime is 490209737. The next prime is 490209757. The reversal of 490209746 is 647902094.

It can be written as a sum of positive squares in 4 ways, for example, as 215943025 + 274266721 = 14695^2 + 16561^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127241 + ... + 131036.

Almost surely, 2^490209746 is an apocalyptic number.

490209746 is a deficient number, since it is larger than the sum of its proper divisors (312518278).

490209746 is a wasteful number, since it uses less digits than its factorization.

490209746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258365.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 490209746 is about 22140.6807935077. The cubic root of 490209746 is about 788.4859888297.

The spelling of 490209746 in words is "four hundred ninety million, two hundred nine thousand, seven hundred forty-six".