4000307 has 4 divisors (see below), whose sum is σ = 4040016. Its totient is φ = 3960600.

The previous prime is 4000303. The next prime is 4000309. The reversal of 4000307 is 7030004.

4000307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4000307 - 2² = 4000303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000291 and 4000300.

It is not an unprimeable number, because it can be changed into a prime (4000301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19703 + ... + 19904.

It is an arithmetic number, because the mean of its divisors is an integer number (1010004).

Almost surely, 2^4000307 is an apocalyptic number.

4000307 is a deficient number, since it is larger than the sum of its proper divisors (39709).

4000307 is a wasteful number, since it uses less digits than its factorization.

4000307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39708.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 4000307 is about 2000.0767485274. The cubic root of 4000307 is about 158.7441661940.

The spelling of 4000307 in words is "four million, three hundred seven", and thus it is an aban number.