40645241 has 16 divisors (see below), whose sum is σ = 50219904. Its totient is φ = 32033664.

The previous prime is 40645229. The next prime is 40645261. The reversal of 40645241 is 14254604.

40645241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40645241 - 2²² = 36450937 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40645241.

It is not an unprimeable number, because it can be changed into a prime (40645261) 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 15 ways as a sum of consecutive naturals, for example, 27770 + ... + 29196.

It is an arithmetic number, because the mean of its divisors is an integer number (3138744).

Almost surely, 2^40645241 is an apocalyptic number.

It is an amenable number.

40645241 is a deficient number, since it is larger than the sum of its proper divisors (9574663).

40645241 is a wasteful number, since it uses less digits than its factorization.

40645241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40645241 is about 6375.3620289361. The cubic root of 40645241 is about 343.8243001485.

Adding to 40645241 its reverse (14254604), we get a palindrome (54899845).

The spelling of 40645241 in words is "forty million, six hundred forty-five thousand, two hundred forty-one".