40857041 has 2 divisors, whose sum is σ = 40857042. Its totient is φ = 40857040.

The previous prime is 40857029. The next prime is 40857067. The reversal of 40857041 is 14075804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36857041 + 4000000 = 6071^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 40857041 - 2¹⁰ = 40856017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40856995 and 40857013.

It is not a weakly prime, because it can be changed into another prime (40857841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20428520 + 20428521.

It is an arithmetic number, because the mean of its divisors is an integer number (20428521).

Almost surely, 2^40857041 is an apocalyptic number.

It is an amenable number.

40857041 is a deficient number, since it is larger than the sum of its proper divisors (1).

40857041 is an equidigital number, since it uses as much as digits as its factorization.

40857041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 40857041 is about 6391.9512670232. The cubic root of 40857041 is about 344.4204819689.

The spelling of 40857041 in words is "forty million, eight hundred fifty-seven thousand, forty-one".