40884589 has 2 divisors, whose sum is σ = 40884590. Its totient is φ = 40884588.

The previous prime is 40884587. The next prime is 40884611. The reversal of 40884589 is 98548804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39904489 + 980100 = 6317^2 + 990^2 .

It is a cyclic number.

It is not a de Polignac number, because 40884589 - 2¹ = 40884587 is a prime.

Together with 40884587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40884583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20442294 + 20442295.

It is an arithmetic number, because the mean of its divisors is an integer number (20442295).

Almost surely, 2^40884589 is an apocalyptic number.

It is an amenable number.

40884589 is a deficient number, since it is larger than the sum of its proper divisors (1).

40884589 is an equidigital number, since it uses as much as digits as its factorization.

40884589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 40884589 is about 6394.1058014393. The cubic root of 40884589 is about 344.4978734747.

The spelling of 40884589 in words is "forty million, eight hundred eighty-four thousand, five hundred eighty-nine".