10040403 has 4 divisors (see below), whose sum is σ = 13387208.
Its totient is φ = 6693600.
The previous prime is 10040399. The next prime is 10040413. The reversal of 10040403 is 30404001.
Adding to 10040403 its reverse (30404001), we get a palindrome (40444404).
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 10040403 - 22 = 10040399 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10040413) 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 3 ways as a sum of consecutive naturals, for example, 1673398 + ... + 1673403.
It is an arithmetic number, because the mean of its divisors is an integer number (3346802).
Almost surely, 210040403 is an apocalyptic number.
10040403 is a deficient number, since it is larger than the sum of its proper divisors (3346805).
10040403 is an equidigital number, since it uses as much as digits as its factorization.
10040403 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3346804.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 10040403 is about 3168.6594957490.
The cubic root of 10040403 is about 215.7332311934.
The spelling of 10040403 in words is "ten million, forty thousand, four hundred three".