40979369 has 2 divisors, whose sum is σ = 40979370. Its totient is φ = 40979368.

The previous prime is 40979359. The next prime is 40979413. The reversal of 40979369 is 96397904.

40979369 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., 37027225 + 3952144 = 6085^2 + 1988^2 .

It is a cyclic number.

It is not a de Polignac number, because 40979369 - 2¹⁶ = 40913833 is a prime.

It is a super-2 number, since 2×40979369² = 3358617367276322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40979329) 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, 20489684 + 20489685.

It is an arithmetic number, because the mean of its divisors is an integer number (20489685).

Almost surely, 2^40979369 is an apocalyptic number.

It is an amenable number.

40979369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40979369 is an equidigital number, since it uses as much as digits as its factorization.

40979369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 40979369 is about 6401.5130242779. The cubic root of 40979369 is about 344.7638767979.

The spelling of 40979369 in words is "forty million, nine hundred seventy-nine thousand, three hundred sixty-nine".