40002707 has 4 divisors (see below), whose sum is σ = 40040400. Its totient is φ = 39965016.

The previous prime is 40002691. The next prime is 40002719. The reversal of 40002707 is 70720004.

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 40002707 - 2⁴ = 40002691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40002797) 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, 17207 + ... + 19392.

It is an arithmetic number, because the mean of its divisors is an integer number (10010100).

Almost surely, 2^40002707 is an apocalyptic number.

40002707 is a deficient number, since it is larger than the sum of its proper divisors (37693).

40002707 is a wasteful number, since it uses less digits than its factorization.

40002707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37692.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 40002707 is about 6324.7693238568. The cubic root of 40002707 is about 342.0029040028.

The spelling of 40002707 in words is "forty million, two thousand, seven hundred seven".