40007005 has 8 divisors (see below), whose sum is σ = 50095872. Its totient is φ = 30613968.

The previous prime is 40007003. The next prime is 40007017. The reversal of 40007005 is 50070004.

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 40007005 - 2¹ = 40007003 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 40007005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007003) 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, 173829 + ... + 174058.

It is an arithmetic number, because the mean of its divisors is an integer number (6261984).

Almost surely, 2^40007005 is an apocalyptic number.

It is an amenable number.

40007005 is a deficient number, since it is larger than the sum of its proper divisors (10088867).

40007005 is a wasteful number, since it uses less digits than its factorization.

40007005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347915.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 40007005 is about 6325.1090899683. The cubic root of 40007005 is about 342.0151521392.

Adding to 40007005 its reverse (50070004), we get a palindrome (90077009).

The spelling of 40007005 in words is "forty million, seven thousand, five".