1003404423 has 16 divisors (see below), whose sum is σ = 1546179840. Its totient is φ = 566930496.

The previous prime is 1003404419. The next prime is 1003404431. The reversal of 1003404423 is 3244043001.

It is not a de Polignac number, because 1003404423 - 2² = 1003404419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1003404423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003404403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266565 + ... + 270302.

It is an arithmetic number, because the mean of its divisors is an integer number (96636240).

Almost surely, 2^1003404423 is an apocalyptic number.

1003404423 is a deficient number, since it is larger than the sum of its proper divisors (542775417).

1003404423 is an equidigital number, since it uses as much as digits as its factorization.

1003404423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536966.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1003404423 is about 31676.5595196196. The cubic root of 1003404423 is about 1001.1335223084.

Adding to 1003404423 its reverse (3244043001), we get a palindrome (4247447424).

The spelling of 1003404423 in words is "one billion, three million, four hundred four thousand, four hundred twenty-three".