40949 has 2 divisors, whose sum is σ = 40950. Its totient is φ = 40948.

The previous prime is 40939. The next prime is 40961. The reversal of 40949 is 94904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34225 + 6724 = 185^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 40949 - 2⁴ = 40933 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40949.

It is not a weakly prime, because it can be changed into another prime (40939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20474 + 20475.

It is an arithmetic number, because the mean of its divisors is an integer number (20475).

2⁴⁰⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

40949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40949 is an equidigital number, since it uses as much as digits as its factorization.

40949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 40949 is about 202.3585926023. The cubic root of 40949 is about 34.4678689854.

It can be divided in two parts, 40 and 949, that added together give a palindrome (989).

The spelling of 40949 in words is "forty thousand, nine hundred forty-nine".