40001473 has 2 divisors, whose sum is σ = 40001474. Its totient is φ = 40001472.

The previous prime is 40001461. The next prime is 40001483. The reversal of 40001473 is 37410004.

It is a happy number.

40001473 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., 23736384 + 16265089 = 4872^2 + 4033^2 .

It is a cyclic number.

It is not a de Polignac number, because 40001473 - 2¹³ = 39993281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40001473.

It is not a weakly prime, because it can be changed into another prime (40001443) 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, 20000736 + 20000737.

It is an arithmetic number, because the mean of its divisors is an integer number (20000737).

Almost surely, 2^40001473 is an apocalyptic number.

It is an amenable number.

40001473 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001473 is an equidigital number, since it uses as much as digits as its factorization.

40001473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 40001473 is about 6324.6717701395. The cubic root of 40001473 is about 341.9993872748. Note that the first 3 decimals are identical.

Adding to 40001473 its reverse (37410004), we get a palindrome (77411477).

The spelling of 40001473 in words is "forty million, one thousand, four hundred seventy-three".