40683385 has 4 divisors (see below), whose sum is σ = 48820068. Its totient is φ = 32546704.

The previous prime is 40683373. The next prime is 40683437. The reversal of 40683385 is 58338604.

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 8602489 + 32080896 = 2933^2 + 5664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40683385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4068334 + ... + 4068343.

It is an arithmetic number, because the mean of its divisors is an integer number (12205017).

Almost surely, 2^40683385 is an apocalyptic number.

It is an amenable number.

40683385 is a deficient number, since it is larger than the sum of its proper divisors (8136683).

40683385 is an equidigital number, since it uses as much as digits as its factorization.

40683385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136682.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 40683385 is about 6378.3528437991. The cubic root of 40683385 is about 343.9318218274.

The spelling of 40683385 in words is "forty million, six hundred eighty-three thousand, three hundred eighty-five".