40485089 has 2 divisors, whose sum is σ = 40485090. Its totient is φ = 40485088.

The previous prime is 40485061. The next prime is 40485097. The reversal of 40485089 is 98058404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36096064 + 4389025 = 6008^2 + 2095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40485089 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40487089) 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 as a sum of consecutive naturals, namely, 20242544 + 20242545.

It is an arithmetic number, because the mean of its divisors is an integer number (20242545).

Almost surely, 2^40485089 is an apocalyptic number.

It is an amenable number.

40485089 is a deficient number, since it is larger than the sum of its proper divisors (1).

40485089 is an equidigital number, since it uses as much as digits as its factorization.

40485089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 40485089 is about 6362.7894040271. The cubic root of 40485089 is about 343.3721223234.

The spelling of 40485089 in words is "forty million, four hundred eighty-five thousand, eighty-nine".