40776881 has 2 divisors, whose sum is σ = 40776882. Its totient is φ = 40776880.

The previous prime is 40776859. The next prime is 40776899. The reversal of 40776881 is 18867704.

40776881 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., 39488656 + 1288225 = 6284^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 40776881 - 2¹⁰ = 40775857 is a prime.

It is a super-2 number, since 2×40776881² = 3325508048176322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40776481) 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, 20388440 + 20388441.

It is an arithmetic number, because the mean of its divisors is an integer number (20388441).

Almost surely, 2^40776881 is an apocalyptic number.

It is an amenable number.

40776881 is a deficient number, since it is larger than the sum of its proper divisors (1).

40776881 is an equidigital number, since it uses as much as digits as its factorization.

40776881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 40776881 is about 6385.6778027082. The cubic root of 40776881 is about 344.1950877598.

The spelling of 40776881 in words is "forty million, seven hundred seventy-six thousand, eight hundred eighty-one".