40364279 has 2 divisors, whose sum is σ = 40364280. Its totient is φ = 40364278.

The previous prime is 40364251. The next prime is 40364297. The reversal of 40364279 is 97246304.

Together with next prime (40364297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40364279 - 2¹⁶ = 40298743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40364479) 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, 20182139 + 20182140.

It is an arithmetic number, because the mean of its divisors is an integer number (20182140).

Almost surely, 2^40364279 is an apocalyptic number.

40364279 is a deficient number, since it is larger than the sum of its proper divisors (1).

40364279 is an equidigital number, since it uses as much as digits as its factorization.

40364279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 40364279 is about 6353.2888333524. The cubic root of 40364279 is about 343.0302341693.

The spelling of 40364279 in words is "forty million, three hundred sixty-four thousand, two hundred seventy-nine".