469649666 has 8 divisors (see below), whose sum is σ = 704714700. Its totient is φ = 234744768.

The previous prime is 469649641. The next prime is 469649689. The reversal of 469649666 is 666946964.

It can be written as a sum of positive squares in 2 ways, for example, as 467813641 + 1836025 = 21629^2 + 1355^2 .

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

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, 32411 + ... + 44606.

Almost surely, 2^469649666 is an apocalyptic number.

469649666 is a deficient number, since it is larger than the sum of its proper divisors (235065034).

469649666 is a wasteful number, since it uses less digits than its factorization.

469649666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80068.

The product of its digits is 10077696, while the sum is 56.

The square root of 469649666 is about 21671.4020312485. The cubic root of 469649666 is about 777.3047815829.

The spelling of 469649666 in words is "four hundred sixty-nine million, six hundred forty-nine thousand, six hundred sixty-six".