490909066 has 8 divisors (see below), whose sum is σ = 736529220. Its totient is φ = 245399328.

The previous prime is 490909057. The next prime is 490909073. The reversal of 490909066 is 660909094.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 391208841 + 99700225 = 19779^2 + 9985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×490909066² = 481983422161984712, which contains 22 as substring.

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, 15411 + ... + 34918.

Almost surely, 2^490909066 is an apocalyptic number.

490909066 is a deficient number, since it is larger than the sum of its proper divisors (245620154).

490909066 is a wasteful number, since it uses less digits than its factorization.

490909066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55208.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 490909066 is about 22156.4678141621. The cubic root of 490909066 is about 788.8607549563.

The spelling of 490909066 in words is "four hundred ninety million, nine hundred nine thousand, sixty-six".