40010001 has 8 divisors (see below), whose sum is σ = 53390400. Its totient is φ = 26651472.

The previous prime is 40009999. The next prime is 40010011. The reversal of 40010001 is 10001004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40010001 - 2¹ = 40009999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40010011) 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, 570 + ... + 8963.

It is an arithmetic number, because the mean of its divisors is an integer number (6673800).

Almost surely, 2^40010001 is an apocalyptic number.

40010001 is the 4001-st centered pentagonal number.

It is an amenable number.

40010001 is a deficient number, since it is larger than the sum of its proper divisors (13380399).

40010001 is a wasteful number, since it uses less digits than its factorization.

40010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10935.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 40010001 is about 6325.3459193944. The cubic root of 40010001 is about 342.0236894093.

Adding to 40010001 its reverse (10001004), we get a palindrome (50011005).

It can be divided in two parts, 400 and 10001, that added together give a palindrome (10401).

The spelling of 40010001 in words is "forty million, ten thousand, one".