40566937 has 2 divisors, whose sum is σ = 40566938. Its totient is φ = 40566936.

The previous prime is 40566923. The next prime is 40566971. The reversal of 40566937 is 73966504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32478601 + 8088336 = 5699^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 40566937 - 2⁷ = 40566809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40566937.

It is not a weakly prime, because it can be changed into another prime (40566637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20283468 + 20283469.

It is an arithmetic number, because the mean of its divisors is an integer number (20283469).

Almost surely, 2^40566937 is an apocalyptic number.

It is an amenable number.

40566937 is a deficient number, since it is larger than the sum of its proper divisors (1).

40566937 is an equidigital number, since it uses as much as digits as its factorization.

40566937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 40566937 is about 6369.2179268730. The cubic root of 40566937 is about 343.6033630432.

The spelling of 40566937 in words is "forty million, five hundred sixty-six thousand, nine hundred thirty-seven".