40500243 has 20 divisors (see below), whose sum is σ = 69144240. Its totient is φ = 23142672.

The previous prime is 40500241. The next prime is 40500247. The reversal of 40500243 is 34200504.

It is a happy number.

It is not a de Polignac number, because 40500243 - 2¹ = 40500241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40500241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35148 + ... + 36281.

It is an arithmetic number, because the mean of its divisors is an integer number (3457212).

Almost surely, 2^40500243 is an apocalyptic number.

40500243 is a deficient number, since it is larger than the sum of its proper divisors (28643997).

40500243 is an equidigital number, since it uses as much as digits as its factorization.

40500243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71448 (or 71439 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40500243 is about 6363.9801225334. The cubic root of 40500243 is about 343.4149595932.

Adding to 40500243 its reverse (34200504), we get a palindrome (74700747).

The spelling of 40500243 in words is "forty million, five hundred thousand, two hundred forty-three".