40740005 has 8 divisors (see below), whose sum is σ = 48981624. Its totient is φ = 32529600.

The previous prime is 40739999. The next prime is 40740043. The reversal of 40740005 is 50004704.

40740005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6646084 + 34093921 = 2578^2 + 5839^2 .

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

It is not a de Polignac number, because 40740005 - 2⁴ = 40739989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 4826 + ... + 10235.

It is an arithmetic number, because the mean of its divisors is an integer number (6122703).

Almost surely, 2^40740005 is an apocalyptic number.

It is an amenable number.

40740005 is a deficient number, since it is larger than the sum of its proper divisors (8241619).

40740005 is a wasteful number, since it uses less digits than its factorization.

40740005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 40740005 is about 6382.7897505715. The cubic root of 40740005 is about 344.0913004685.

Adding to 40740005 its reverse (50004704), we get a palindrome (90744709).

The spelling of 40740005 in words is "forty million, seven hundred forty thousand, five".