401305403 has 8 divisors (see below), whose sum is σ = 440793600. Its totient is φ = 363653928.

The previous prime is 401305391. The next prime is 401305423. The reversal of 401305403 is 304503104.

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 401305403 - 2⁸ = 401305147 is a prime.

It is a super-2 number, since 2×401305403² = 322092052953984818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401305423) 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, 458723 + ... + 459596.

It is an arithmetic number, because the mean of its divisors is an integer number (55099200).

Almost surely, 2^401305403 is an apocalyptic number.

401305403 is a deficient number, since it is larger than the sum of its proper divisors (39488197).

401305403 is a wasteful number, since it uses less digits than its factorization.

401305403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918361.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 401305403 is about 20032.6084921560. The cubic root of 401305403 is about 737.6069536737.

Adding to 401305403 its reverse (304503104), we get a palindrome (705808507).

The spelling of 401305403 in words is "four hundred one million, three hundred five thousand, four hundred three".