40066303 has 4 divisors (see below), whose sum is σ = 40136320. Its totient is φ = 39996288.

The previous prime is 40066283. The next prime is 40066309. The reversal of 40066303 is 30366004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40066303 - 2²⁵ = 6511871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40066309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34143 + ... + 35296.

It is an arithmetic number, because the mean of its divisors is an integer number (10034080).

Almost surely, 2^40066303 is an apocalyptic number.

40066303 is a deficient number, since it is larger than the sum of its proper divisors (70017).

40066303 is an equidigital number, since it uses as much as digits as its factorization.

40066303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70016.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 40066303 is about 6329.7948623948. The cubic root of 40066303 is about 342.1840459177.

The spelling of 40066303 in words is "forty million, sixty-six thousand, three hundred three".