40771949 has 2 divisors, whose sum is σ = 40771950. Its totient is φ = 40771948.

The previous prime is 40771937. The next prime is 40771957. The reversal of 40771949 is 94917704.

It is a happy number.

40771949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40729924 + 42025 = 6382^2 + 205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40771949 is a prime.

It is a super-3 number, since 3×40771949³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40771909) 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 as a sum of consecutive naturals, namely, 20385974 + 20385975.

It is an arithmetic number, because the mean of its divisors is an integer number (20385975).

Almost surely, 2^40771949 is an apocalyptic number.

It is an amenable number.

40771949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40771949 is an equidigital number, since it uses as much as digits as its factorization.

40771949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 40771949 is about 6385.2916143274. The cubic root of 40771949 is about 344.1812102997.

The spelling of 40771949 in words is "forty million, seven hundred seventy-one thousand, nine hundred forty-nine".