401000003 has 4 divisors (see below), whose sum is σ = 401272248. Its totient is φ = 400727760.

The previous prime is 400999999. The next prime is 401000011. The reversal of 401000003 is 300000104.

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 401000003 - 2² = 400999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401000203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133901 + ... + 136862.

It is an arithmetic number, because the mean of its divisors is an integer number (100318062).

Almost surely, 2^401000003 is an apocalyptic number.

401000003 is a deficient number, since it is larger than the sum of its proper divisors (272245).

401000003 is a wasteful number, since it uses less digits than its factorization.

401000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272244.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 401000003 is about 20024.9844694072. The cubic root of 401000003 is about 737.4197958552.

Adding to 401000003 its reverse (300000104), we get a palindrome (701000107).

The spelling of 401000003 in words is "four hundred one million, three", and thus it is an aban number.