40243241 has 4 divisors (see below), whose sum is σ = 40420752. Its totient is φ = 40065732.

The previous prime is 40243223. The next prime is 40243243. The reversal of 40243241 is 14234204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40243241 - 2¹⁰ = 40242217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40243243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88415 + ... + 88868.

It is an arithmetic number, because the mean of its divisors is an integer number (10105188).

Almost surely, 2^40243241 is an apocalyptic number.

It is an amenable number.

40243241 is a deficient number, since it is larger than the sum of its proper divisors (177511).

40243241 is a wasteful number, since it uses less digits than its factorization.

40243241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177510.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40243241 is about 6343.7560640365. The cubic root of 40243241 is about 342.6870159850.

Adding to 40243241 its reverse (14234204), we get a palindrome (54477445).

The spelling of 40243241 in words is "forty million, two hundred forty-three thousand, two hundred forty-one".