401040403 has 8 divisors (see below), whose sum is σ = 411364800. Its totient is φ = 390761448.

The previous prime is 401040379. The next prime is 401040427. The reversal of 401040403 is 304040104.

It is an interprime number because it is at equal distance from previous prime (401040379) and next prime (401040427).

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-401040403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401040463) 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, 6888 + ... + 29146.

It is an arithmetic number, because the mean of its divisors is an integer number (51420600).

Almost surely, 2^401040403 is an apocalyptic number.

401040403 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

401040403 is a deficient number, since it is larger than the sum of its proper divisors (10324397).

401040403 is a wasteful number, since it uses less digits than its factorization.

401040403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22721.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 401040403 is about 20025.9931838598. The cubic root of 401040403 is about 737.4445595785. Note that the first 3 decimals are identical.

Adding to 401040403 its reverse (304040104), we get a palindrome (705080507).

The spelling of 401040403 in words is "four hundred one million, forty thousand, four hundred three".