40716289 has 4 divisors (see below), whose sum is σ = 40810756. Its totient is φ = 40621824.

The previous prime is 40716287. The next prime is 40716293. The reversal of 40716289 is 98261704.

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 12837889 + 27878400 = 3583^2 + 5280^2 .

It is a cyclic number.

It is not a de Polignac number, because 40716289 - 2¹ = 40716287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40716281) 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, 46584 + ... + 47449.

It is an arithmetic number, because the mean of its divisors is an integer number (10202689).

Almost surely, 2^40716289 is an apocalyptic number.

It is an amenable number.

40716289 is a deficient number, since it is larger than the sum of its proper divisors (94467).

40716289 is an equidigital number, since it uses as much as digits as its factorization.

40716289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94466.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 40716289 is about 6380.9316717859. The cubic root of 40716289 is about 344.0245188265.

The spelling of 40716289 in words is "forty million, seven hundred sixteen thousand, two hundred eighty-nine".