40004035 has 4 divisors (see below), whose sum is σ = 48004848. Its totient is φ = 32003224.

The previous prime is 40004023. The next prime is 40004039. The reversal of 40004035 is 53040004.

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 40004035 - 2¹¹ = 40001987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40004039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000399 + ... + 4000408.

It is an arithmetic number, because the mean of its divisors is an integer number (12001212).

Almost surely, 2^40004035 is an apocalyptic number.

40004035 is a deficient number, since it is larger than the sum of its proper divisors (8000813).

40004035 is an equidigital number, since it uses as much as digits as its factorization.

40004035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000812.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 40004035 is about 6324.8743070515. The cubic root of 40004035 is about 342.0066885369.

Adding to 40004035 its reverse (53040004), we get a palindrome (93044039).

The spelling of 40004035 in words is "forty million, four thousand, thirty-five".