400110005 has 4 divisors (see below), whose sum is σ = 480132012. Its totient is φ = 320088000.

The previous prime is 400109987. The next prime is 400110023. The reversal of 400110005 is 500011004.

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

It is an interprime number because it is at equal distance from previous prime (400109987) and next prime (400110023).

It can be written as a sum of positive squares in 2 ways, for example, as 176517796 + 223592209 = 13286^2 + 14953^2 .

It is not a de Polignac number, because 400110005 - 2¹⁰ = 400108981 is a prime.

It is a super-2 number, since 2×400110005² = 320176032202200050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40010996 + ... + 40011005.

It is an arithmetic number, because the mean of its divisors is an integer number (120033003).

Almost surely, 2^400110005 is an apocalyptic number.

It is an amenable number.

400110005 is a deficient number, since it is larger than the sum of its proper divisors (80022007).

400110005 is an equidigital number, since it uses as much as digits as its factorization.

400110005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80022006.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 400110005 is about 20002.7499359463. The cubic root of 400110005 is about 736.8738371847.

Adding to 400110005 its reverse (500011004), we get a palindrome (900121009).

Subtracting 400110005 from its reverse (500011004), we obtain a palindrome (99900999).

The spelling of 400110005 in words is "four hundred million, one hundred ten thousand, five".