404566066 has 32 divisors (see below), whose sum is σ = 657091440. Its totient is φ = 186391296.

The previous prime is 404566039. The next prime is 404566087. The reversal of 404566066 is 660665404.

It can be written as a sum of positive squares in 8 ways, for example, as 258277041 + 146289025 = 16071^2 + 12095^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111960 + ... + 115516.

Almost surely, 2^404566066 is an apocalyptic number.

404566066 is a deficient number, since it is larger than the sum of its proper divisors (252525374).

404566066 is a wasteful number, since it uses less digits than its factorization.

404566066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 404566066 is about 20113.8277311903. The cubic root of 404566066 is about 739.5992875566.

The spelling of 404566066 in words is "four hundred four million, five hundred sixty-six thousand, sixty-six".