40011066 has 24 divisors (see below), whose sum is σ = 87490260. Its totient is φ = 13214016.

The previous prime is 40011031. The next prime is 40011067. The reversal of 40011066 is 66011004.

It can be written as a sum of positive squares in 2 ways, for example, as 39425841 + 585225 = 6279^2 + 765^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40011067) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8235 + ... + 12158.

Almost surely, 2^40011066 is an apocalyptic number.

40011066 is an abundant number, since it is smaller than the sum of its proper divisors (47479194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40011066 is a wasteful number, since it uses less digits than its factorization.

40011066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20510 (or 20507 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 40011066 is about 6325.4301039534. The cubic root of 40011066 is about 342.0267240839.

The spelling of 40011066 in words is "forty million, eleven thousand, sixty-six".