401016005 has 8 divisors (see below), whose sum is σ = 518236152. Its totient is φ = 296134848.

The previous prime is 401016001. The next prime is 401016053. The reversal of 401016005 is 500610104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4169764 + 396846241 = 2042^2 + 19921^2 .

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 401016005 - 2² = 401016001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401016001) 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, 3084674 + ... + 3084803.

It is an arithmetic number, because the mean of its divisors is an integer number (64779519).

Almost surely, 2^401016005 is an apocalyptic number.

It is an amenable number.

401016005 is a deficient number, since it is larger than the sum of its proper divisors (117220147).

401016005 is a wasteful number, since it uses less digits than its factorization.

401016005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169495.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 401016005 is about 20025.3840162929. The cubic root of 401016005 is about 737.4296046952.

Adding to 401016005 its reverse (500610104), we get a palindrome (901626109).

The spelling of 401016005 in words is "four hundred one million, sixteen thousand, five".