40216601 has 4 divisors (see below), whose sum is σ = 40783104. Its totient is φ = 39650100.

The previous prime is 40216541. The next prime is 40216619. The reversal of 40216601 is 10661204.

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 40216601 - 2¹⁰ = 40215577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40216621) 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, 283145 + ... + 283286.

It is an arithmetic number, because the mean of its divisors is an integer number (10195776).

Almost surely, 2^40216601 is an apocalyptic number.

It is an amenable number.

40216601 is a deficient number, since it is larger than the sum of its proper divisors (566503).

40216601 is an equidigital number, since it uses as much as digits as its factorization.

40216601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566502.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40216601 is about 6341.6560140077. The cubic root of 40216601 is about 342.6113826028.

Adding to 40216601 its reverse (10661204), we get a palindrome (50877805).

The spelling of 40216601 in words is "forty million, two hundred sixteen thousand, six hundred one".