40828771 has 2 divisors, whose sum is σ = 40828772. Its totient is φ = 40828770.

The previous prime is 40828757. The next prime is 40828783. The reversal of 40828771 is 17782804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40828771 - 2¹⁹ = 40304483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40828771.

It is not a weakly prime, because it can be changed into another prime (40828721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20414385 + 20414386.

It is an arithmetic number, because the mean of its divisors is an integer number (20414386).

Almost surely, 2^40828771 is an apocalyptic number.

40828771 is a deficient number, since it is larger than the sum of its proper divisors (1).

40828771 is an equidigital number, since it uses as much as digits as its factorization.

40828771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 40828771 is about 6389.7395095575. The cubic root of 40828771 is about 344.3410259489.

The spelling of 40828771 in words is "forty million, eight hundred twenty-eight thousand, seven hundred seventy-one".