40566266 has 8 divisors (see below), whose sum is σ = 65530164. Its totient is φ = 18722880.

The previous prime is 40566257. The next prime is 40566277. The reversal of 40566266 is 66266504.

It can be written as a sum of positive squares in 2 ways, for example, as 33884041 + 6682225 = 5821^2 + 2585^2 .

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

It is a Curzon number.

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, 780095 + ... + 780146.

Almost surely, 2^40566266 is an apocalyptic number.

40566266 is a deficient number, since it is larger than the sum of its proper divisors (24963898).

40566266 is a wasteful number, since it uses less digits than its factorization.

40566266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560256.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 40566266 is about 6369.1652514282. The cubic root of 40566266 is about 343.6014685684.

The spelling of 40566266 in words is "forty million, five hundred sixty-six thousand, two hundred sixty-six".