401240003 has 4 divisors (see below), whose sum is σ = 403340928. Its totient is φ = 399139080.

The previous prime is 401239939. The next prime is 401240029. The reversal of 401240003 is 300042104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401240003 - 2⁶ = 401239939 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 401240003.

It is not an unprimeable number, because it can be changed into a prime (401240053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050176 + ... + 1050557.

It is an arithmetic number, because the mean of its divisors is an integer number (100835232).

Almost surely, 2^401240003 is an apocalyptic number.

401240003 is a deficient number, since it is larger than the sum of its proper divisors (2100925).

401240003 is a wasteful number, since it uses less digits than its factorization.

401240003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100924.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 401240003 is about 20030.9760870508. The cubic root of 401240003 is about 737.5668826828.

Adding to 401240003 its reverse (300042104), we get a palindrome (701282107).

The spelling of 401240003 in words is "four hundred one million, two hundred forty thousand, three".