400110001 has 4 divisors (see below), whose sum is σ = 417506112. Its totient is φ = 382713892.

The previous prime is 400109987. The next prime is 400110023. The reversal of 400110001 is 100011004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400110001 - 2¹³ = 400101809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400110031) 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, 8698021 + ... + 8698066.

It is an arithmetic number, because the mean of its divisors is an integer number (104376528).

Almost surely, 2^400110001 is an apocalyptic number.

It is an amenable number.

400110001 is a deficient number, since it is larger than the sum of its proper divisors (17396111).

400110001 is a wasteful number, since it uses less digits than its factorization.

400110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17396110.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 400110001 is about 20002.7498359601. The cubic root of 400110001 is about 736.8738347292.

Adding to 400110001 its reverse (100011004), we get a palindrome (500121005).

The spelling of 400110001 in words is "four hundred million, one hundred ten thousand, one".