404142403 has 8 divisors (see below), whose sum is σ = 462309120. Its totient is φ = 346083720.

The previous prime is 404142397. The next prime is 404142413. The reversal of 404142403 is 304241404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404142403 is a prime.

It is a super-4 number, since 4×404142403⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (404142413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18823 + ... + 34096.

It is an arithmetic number, because the mean of its divisors is an integer number (57788640).

Almost surely, 2^404142403 is an apocalyptic number.

404142403 is a deficient number, since it is larger than the sum of its proper divisors (58166717).

404142403 is a wasteful number, since it uses less digits than its factorization.

404142403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54017.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 404142403 is about 20103.2933371624. The cubic root of 404142403 is about 739.3410270645.

Adding to 404142403 its reverse (304241404), we get a palindrome (708383807).

Subtracting from 404142403 its reverse (304241404), we obtain a palindrome (99900999).

The spelling of 404142403 in words is "four hundred four million, one hundred forty-two thousand, four hundred three".