40015201 has 4 divisors (see below), whose sum is σ = 40464900. Its totient is φ = 39565504.

The previous prime is 40015177. The next prime is 40015211. The reversal of 40015201 is 10251004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14814801 + 25200400 = 3849^2 + 5020^2 .

It is a cyclic number.

It is not a de Polignac number, because 40015201 - 2¹¹ = 40013153 is a prime.

It is a super-2 number, since 2×40015201² = 3202432622140802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40015211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224716 + ... + 224893.

It is an arithmetic number, because the mean of its divisors is an integer number (10116225).

Almost surely, 2^40015201 is an apocalyptic number.

It is an amenable number.

40015201 is a deficient number, since it is larger than the sum of its proper divisors (449699).

40015201 is an equidigital number, since it uses as much as digits as its factorization.

40015201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449698.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 40015201 is about 6325.7569507530. The cubic root of 40015201 is about 342.0385060893.

Adding to 40015201 its reverse (10251004), we get a palindrome (50266205).

The spelling of 40015201 in words is "forty million, fifteen thousand, two hundred one".