40018807 has 8 divisors (see below), whose sum is σ = 42249600. Its totient is φ = 37800504.

The previous prime is 40018757. The next prime is 40018859. The reversal of 40018807 is 70881004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40018807 - 2⁷ = 40018679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40018507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888 + ... + 9754.

It is an arithmetic number, because the mean of its divisors is an integer number (5281200).

Almost surely, 2^40018807 is an apocalyptic number.

40018807 is a deficient number, since it is larger than the sum of its proper divisors (2230793).

40018807 is a wasteful number, since it uses less digits than its factorization.

40018807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6245.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 40018807 is about 6326.0419695098. The cubic root of 40018807 is about 342.0487801332.

The spelling of 40018807 in words is "forty million, eighteen thousand, eight hundred seven".