40665003 has 8 divisors (see below), whose sum is σ = 57409488. Its totient is φ = 25515264.

The previous prime is 40664993. The next prime is 40665017. The reversal of 40665003 is 30056604.

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

It is not a de Polignac number, because 40665003 - 2¹⁰ = 40663979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40665083) 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 7 ways as a sum of consecutive naturals, for example, 398626 + ... + 398727.

It is an arithmetic number, because the mean of its divisors is an integer number (7176186).

Almost surely, 2^40665003 is an apocalyptic number.

40665003 is a deficient number, since it is larger than the sum of its proper divisors (16744485).

40665003 is a wasteful number, since it uses less digits than its factorization.

40665003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797373.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 40665003 is about 6376.9117133609. The cubic root of 40665003 is about 343.8800143785.

The spelling of 40665003 in words is "forty million, six hundred sixty-five thousand, three".