40033005 has 16 divisors (see below), whose sum is σ = 64131264. Its totient is φ = 21324800.

The previous prime is 40033003. The next prime is 40033009. The reversal of 40033005 is 50033004.

It is not a de Polignac number, because 40033005 - 2¹ = 40033003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40033003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23182 + ... + 24848.

It is an arithmetic number, because the mean of its divisors is an integer number (4008204).

Almost surely, 2^40033005 is an apocalyptic number.

It is an amenable number.

40033005 is a deficient number, since it is larger than the sum of its proper divisors (24098259).

40033005 is a wasteful number, since it uses less digits than its factorization.

40033005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 40033005 is about 6327.1640566687. The cubic root of 40033005 is about 342.0892264028.

Adding to 40033005 its reverse (50033004), we get a palindrome (90066009).

Subtracting 40033005 from its reverse (50033004), we obtain a palindrome (9999999).

The spelling of 40033005 in words is "forty million, thirty-three thousand, five".