40589243 has 2 divisors, whose sum is σ = 40589244. Its totient is φ = 40589242.

The previous prime is 40589233. The next prime is 40589249. The reversal of 40589243 is 34298504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40589243 - 2⁶ = 40589179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40589249) 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, 20294621 + 20294622.

It is an arithmetic number, because the mean of its divisors is an integer number (20294622).

Almost surely, 2^40589243 is an apocalyptic number.

40589243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40589243 is an equidigital number, since it uses as much as digits as its factorization.

40589243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 40589243 is about 6370.9687646385. The cubic root of 40589243 is about 343.6663290350. Note that the first 3 decimals are identical.

The spelling of 40589243 in words is "forty million, five hundred eighty-nine thousand, two hundred forty-three".