404140503 has 8 divisors (see below), whose sum is σ = 580304368. Its totient is φ = 248701824.

The previous prime is 404140493. The next prime is 404140519. The reversal of 404140503 is 305041404.

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

It is not a de Polignac number, because 404140503 - 2⁴ = 404140487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404140503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404140523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5181250 + ... + 5181327.

It is an arithmetic number, because the mean of its divisors is an integer number (72538046).

Almost surely, 2^404140503 is an apocalyptic number.

404140503 is a deficient number, since it is larger than the sum of its proper divisors (176163865).

404140503 is a wasteful number, since it uses less digits than its factorization.

404140503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10362593.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 404140503 is about 20103.2460811681. The cubic root of 404140503 is about 739.3398684381.

Adding to 404140503 its reverse (305041404), we get a palindrome (709181907).

Subtracting from 404140503 its reverse (305041404), we obtain a palindrome (99099099).

It can be divided in two parts, 4041 and 40503, that added together give a palindrome (44544).

The spelling of 404140503 in words is "four hundred four million, one hundred forty thousand, five hundred three".