40305667 has 2 divisors, whose sum is σ = 40305668. Its totient is φ = 40305666.

The previous prime is 40305653. The next prime is 40305701. The reversal of 40305667 is 76650304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40305667 - 2²³ = 31917059 is a prime.

It is not a weakly prime, because it can be changed into another prime (40305647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152833 + 20152834.

It is an arithmetic number, because the mean of its divisors is an integer number (20152834).

Almost surely, 2^40305667 is an apocalyptic number.

40305667 is a deficient number, since it is larger than the sum of its proper divisors (1).

40305667 is an equidigital number, since it uses as much as digits as its factorization.

40305667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 40305667 is about 6348.6744285717. The cubic root of 40305667 is about 342.8641184179.

The spelling of 40305667 in words is "forty million, three hundred five thousand, six hundred sixty-seven".