40056473 has 2 divisors, whose sum is σ = 40056474. Its totient is φ = 40056472.

The previous prime is 40056463. The next prime is 40056479. The reversal of 40056473 is 37465004.

40056473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35617024 + 4439449 = 5968^2 + 2107^2 .

It is a cyclic number.

It is not a de Polignac number, because 40056473 - 2⁸ = 40056217 is a prime.

It is not a weakly prime, because it can be changed into another prime (40056479) 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 as a sum of consecutive naturals, namely, 20028236 + 20028237.

It is an arithmetic number, because the mean of its divisors is an integer number (20028237).

Almost surely, 2^40056473 is an apocalyptic number.

It is an amenable number.

40056473 is a deficient number, since it is larger than the sum of its proper divisors (1).

40056473 is an equidigital number, since it uses as much as digits as its factorization.

40056473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 40056473 is about 6329.0183283034. The cubic root of 40056473 is about 342.1560594383.

The spelling of 40056473 in words is "forty million, fifty-six thousand, four hundred seventy-three".