40247773 has 4 divisors (see below), whose sum is σ = 41229468. Its totient is φ = 39266080.

The previous prime is 40247759. The next prime is 40247777. The reversal of 40247773 is 37774204.

It is a happy number.

40247773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11539609 + 28708164 = 3397^2 + 5358^2 .

It is a cyclic number.

It is not a de Polignac number, because 40247773 - 2²¹ = 38150621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40247777) 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 3 ways as a sum of consecutive naturals, for example, 490786 + ... + 490867.

It is an arithmetic number, because the mean of its divisors is an integer number (10307367).

Almost surely, 2^40247773 is an apocalyptic number.

It is an amenable number.

40247773 is a deficient number, since it is larger than the sum of its proper divisors (981695).

40247773 is an equidigital number, since it uses as much as digits as its factorization.

40247773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981694.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 40247773 is about 6344.1132556095. The cubic root of 40247773 is about 342.6998794226.

The spelling of 40247773 in words is "forty million, two hundred forty-seven thousand, seven hundred seventy-three".