40220330309 has 2 divisors, whose sum is σ = 40220330310. Its totient is φ = 40220330308.

The previous prime is 40220330287. The next prime is 40220330333. The reversal of 40220330309 is 90303302204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35026245409 + 5194084900 = 187153^2 + 72070^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220330309 - 2³² = 35925363013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40220530309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110165154 + 20110165155.

It is an arithmetic number, because the mean of its divisors is an integer number (20110165155).

Almost surely, 2^40220330309 is an apocalyptic number.

It is an amenable number.

40220330309 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220330309 is an equidigital number, since it uses as much as digits as its factorization.

40220330309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 40220330309 in words is "forty billion, two hundred twenty million, three hundred thirty thousand, three hundred nine".