40310779 has 2 divisors, whose sum is σ = 40310780. Its totient is φ = 40310778.

The previous prime is 40310729. The next prime is 40310807. The reversal of 40310779 is 97701304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40310779 - 2¹¹ = 40308731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40310779.

It is not a weakly prime, because it can be changed into another prime (40310719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20155389 + 20155390.

It is an arithmetic number, because the mean of its divisors is an integer number (20155390).

Almost surely, 2^40310779 is an apocalyptic number.

40310779 is a deficient number, since it is larger than the sum of its proper divisors (1).

40310779 is an equidigital number, since it uses as much as digits as its factorization.

40310779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 40310779 is about 6349.0770195360. The cubic root of 40310779 is about 342.8786130487.

The spelling of 40310779 in words is "forty million, three hundred ten thousand, seven hundred seventy-nine".