40010003 has 4 divisors (see below), whose sum is σ = 43647288. Its totient is φ = 36372720.

The previous prime is 40009999. The next prime is 40010011. The reversal of 40010003 is 30001004.

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 40010003 - 2² = 40009999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40010063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818626 + ... + 1818647.

It is an arithmetic number, because the mean of its divisors is an integer number (10911822).

Almost surely, 2^40010003 is an apocalyptic number.

40010003 is a deficient number, since it is larger than the sum of its proper divisors (3637285).

40010003 is a wasteful number, since it uses less digits than its factorization.

40010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637284.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 40010003 is about 6325.3460774886. The cubic root of 40010003 is about 342.0236951083.

Adding to 40010003 its reverse (30001004), we get a palindrome (70011007).

The spelling of 40010003 in words is "forty million, ten thousand, three".