40250281 has 2 divisors, whose sum is σ = 40250282. Its totient is φ = 40250280.

The previous prime is 40250251. The next prime is 40250291. The reversal of 40250281 is 18205204.

40250281 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., 27405225 + 12845056 = 5235^2 + 3584^2 .

It is a cyclic number.

It is not a de Polignac number, because 40250281 - 2¹⁹ = 39725993 is a prime.

It is a super-2 number, since 2×40250281² = 3240170241157922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40250251) 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, 20125140 + 20125141.

It is an arithmetic number, because the mean of its divisors is an integer number (20125141).

Almost surely, 2^40250281 is an apocalyptic number.

It is an amenable number.

40250281 is a deficient number, since it is larger than the sum of its proper divisors (1).

40250281 is an equidigital number, since it uses as much as digits as its factorization.

40250281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 40250281 is about 6344.3109160885. The cubic root of 40250281 is about 342.7069976090.

Adding to 40250281 its reverse (18205204), we get a palindrome (58455485).

The spelling of 40250281 in words is "forty million, two hundred fifty thousand, two hundred eighty-one".