40956709 has 2 divisors, whose sum is σ = 40956710. Its totient is φ = 40956708.

The previous prime is 40956701. The next prime is 40956719. The reversal of 40956709 is 90765904.

40956709 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., 40832100 + 124609 = 6390^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 40956709 - 2³ = 40956701 is a prime.

It is a super-2 number, since 2×40956709² = 3354904024221362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40956701) 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, 20478354 + 20478355.

It is an arithmetic number, because the mean of its divisors is an integer number (20478355).

Almost surely, 2^40956709 is an apocalyptic number.

It is an amenable number.

40956709 is a deficient number, since it is larger than the sum of its proper divisors (1).

40956709 is an equidigital number, since it uses as much as digits as its factorization.

40956709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 40956709 is about 6399.7428854603. The cubic root of 40956709 is about 344.7003180686.

The spelling of 40956709 in words is "forty million, nine hundred fifty-six thousand, seven hundred nine".