40784973 has 8 divisors (see below), whose sum is σ = 54583200. Its totient is φ = 27088368.

The previous prime is 40784969. The next prime is 40784981. The reversal of 40784973 is 37948704.

40784973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40784973 - 2² = 40784969 is a prime.

It is a super-2 number, since 2×40784973² = 3326828045221458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40784983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24463 + ... + 26076.

It is an arithmetic number, because the mean of its divisors is an integer number (6822900).

Almost surely, 2^40784973 is an apocalyptic number.

It is an amenable number.

40784973 is a deficient number, since it is larger than the sum of its proper divisors (13798227).

40784973 is a wasteful number, since it uses less digits than its factorization.

40784973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50811.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 40784973 is about 6386.3113766869. The cubic root of 40784973 is about 344.2178542749.

The spelling of 40784973 in words is "forty million, seven hundred eighty-four thousand, nine hundred seventy-three".