40004307 has 16 divisors (see below), whose sum is σ = 67732480. Its totient is φ = 22859496.

The previous prime is 40004303. The next prime is 40004309. The reversal of 40004307 is 70340004.

40004307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40004307 - 2² = 40004303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40004307.

It is not an unprimeable number, because it can be changed into a prime (40004303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105643 + ... + 106020.

It is an arithmetic number, because the mean of its divisors is an integer number (4233280).

Almost surely, 2^40004307 is an apocalyptic number.

40004307 is a deficient number, since it is larger than the sum of its proper divisors (27728173).

40004307 is a wasteful number, since it uses less digits than its factorization.

40004307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211679 (or 211673 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 40004307 is about 6324.8958094185. The cubic root of 40004307 is about 342.0074636721.

The spelling of 40004307 in words is "forty million, four thousand, three hundred seven".