40680319 has 2 divisors, whose sum is σ = 40680320. Its totient is φ = 40680318.

The previous prime is 40680317. The next prime is 40680331. The reversal of 40680319 is 91308604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40680319 - 2¹ = 40680317 is a prime.

It is a super-2 number, since 2×40680319² = 3309776707883522, which contains 22 as substring.

Together with 40680317, 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 (40680317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20340159 + 20340160.

It is an arithmetic number, because the mean of its divisors is an integer number (20340160).

Almost surely, 2^40680319 is an apocalyptic number.

40680319 is a deficient number, since it is larger than the sum of its proper divisors (1).

40680319 is an equidigital number, since it uses as much as digits as its factorization.

40680319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 40680319 is about 6378.1124950882. The cubic root of 40680319 is about 343.9231817609.

The spelling of 40680319 in words is "forty million, six hundred eighty thousand, three hundred nineteen".