40830661 has 2 divisors, whose sum is σ = 40830662. Its totient is φ = 40830660.

The previous prime is 40830659. The next prime is 40830667. The reversal of 40830661 is 16603804.

40830661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39125025 + 1705636 = 6255^2 + 1306^2 .

It is a cyclic number.

It is not a de Polignac number, because 40830661 - 2¹ = 40830659 is a prime.

Together with 40830659, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40830667) 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, 20415330 + 20415331.

It is an arithmetic number, because the mean of its divisors is an integer number (20415331).

Almost surely, 2^40830661 is an apocalyptic number.

It is an amenable number.

40830661 is a deficient number, since it is larger than the sum of its proper divisors (1).

40830661 is an equidigital number, since it uses as much as digits as its factorization.

40830661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40830661 is about 6389.8874011989. The cubic root of 40830661 is about 344.3463391507.

The spelling of 40830661 in words is "forty million, eight hundred thirty thousand, six hundred sixty-one".