405401003 has 8 divisors (see below), whose sum is σ = 463446240. Its totient is φ = 347388480.

The previous prime is 405400997. The next prime is 405401011. The reversal of 405401003 is 300104504.

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

It is a cyclic number.

It is not a de Polignac number, because 405401003 - 2²⁰ = 404352427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405401053) 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, 30743 + ... + 41903.

It is an arithmetic number, because the mean of its divisors is an integer number (57930780).

Almost surely, 2^405401003 is an apocalyptic number.

405401003 is a deficient number, since it is larger than the sum of its proper divisors (58045237).

405401003 is a wasteful number, since it uses less digits than its factorization.

405401003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16357.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 405401003 is about 20134.5723321853. The cubic root of 405401003 is about 740.1077290202.

Adding to 405401003 its reverse (300104504), we get a palindrome (705505507).

The spelling of 405401003 in words is "four hundred five million, four hundred one thousand, three".