40099307 has 2 divisors, whose sum is σ = 40099308. Its totient is φ = 40099306.

The previous prime is 40099261. The next prime is 40099313. The reversal of 40099307 is 70399004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40099307 - 2¹⁶ = 40033771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40099357) 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, 20049653 + 20049654.

It is an arithmetic number, because the mean of its divisors is an integer number (20049654).

Almost surely, 2^40099307 is an apocalyptic number.

40099307 is a deficient number, since it is larger than the sum of its proper divisors (1).

40099307 is an equidigital number, since it uses as much as digits as its factorization.

40099307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 40099307 is about 6332.4013612531. The cubic root of 40099307 is about 342.2779764104.

The spelling of 40099307 in words is "forty million, ninety-nine thousand, three hundred seven".