40302071 has 2 divisors, whose sum is σ = 40302072. Its totient is φ = 40302070.

The previous prime is 40302047. The next prime is 40302079. The reversal of 40302071 is 17020304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40302071 - 2¹⁰ = 40301047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40302079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151035 + 20151036.

It is an arithmetic number, because the mean of its divisors is an integer number (20151036).

Almost surely, 2^40302071 is an apocalyptic number.

40302071 is a deficient number, since it is larger than the sum of its proper divisors (1).

40302071 is an equidigital number, since it uses as much as digits as its factorization.

40302071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 40302071 is about 6348.3912135280. The cubic root of 40302071 is about 342.8539215388.

Adding to 40302071 its reverse (17020304), we get a palindrome (57322375).

The spelling of 40302071 in words is "forty million, three hundred two thousand, seventy-one".