40606243 has 4 divisors (see below), whose sum is σ = 40684408. Its totient is φ = 40528080.

The previous prime is 40606229. The next prime is 40606273. The reversal of 40606243 is 34260604.

40606243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40606243 - 2⁹ = 40605731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40606273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38298 + ... + 39343.

It is an arithmetic number, because the mean of its divisors is an integer number (10171102).

Almost surely, 2^40606243 is an apocalyptic number.

40606243 is a deficient number, since it is larger than the sum of its proper divisors (78165).

40606243 is an equidigital number, since it uses as much as digits as its factorization.

40606243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78164.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 40606243 is about 6372.3028019704. The cubic root of 40606243 is about 343.7143016152.

Adding to 40606243 its reverse (34260604), we get a palindrome (74866847).

The spelling of 40606243 in words is "forty million, six hundred six thousand, two hundred forty-three".