40784033 has 4 divisors (see below), whose sum is σ = 41358528. Its totient is φ = 40209540.

The previous prime is 40784021. The next prime is 40784041. The reversal of 40784033 is 33048704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40784033 - 2¹⁰ = 40783009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40783987 and 40784005.

It is not an unprimeable number, because it can be changed into a prime (40784533) 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, 287141 + ... + 287282.

It is an arithmetic number, because the mean of its divisors is an integer number (10339632).

Almost surely, 2^40784033 is an apocalyptic number.

It is an amenable number.

40784033 is a deficient number, since it is larger than the sum of its proper divisors (574495).

40784033 is an equidigital number, since it uses as much as digits as its factorization.

40784033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574494.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40784033 is about 6386.2377813545. The cubic root of 40784033 is about 344.2152097775.

The spelling of 40784033 in words is "forty million, seven hundred eighty-four thousand, thirty-three".