40340359 has 2 divisors, whose sum is σ = 40340360. Its totient is φ = 40340358.

The previous prime is 40340357. The next prime is 40340369. The reversal of 40340359 is 95304304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40340359 - 2¹ = 40340357 is a prime.

Together with 40340357, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40340357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20170179 + 20170180.

It is an arithmetic number, because the mean of its divisors is an integer number (20170180).

Almost surely, 2^40340359 is an apocalyptic number.

40340359 is a deficient number, since it is larger than the sum of its proper divisors (1).

40340359 is an equidigital number, since it uses as much as digits as its factorization.

40340359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 40340359 is about 6351.4060648017. The cubic root of 40340359 is about 342.9624605110.

The spelling of 40340359 in words is "forty million, three hundred forty thousand, three hundred fifty-nine".