40783851 has 16 divisors (see below), whose sum is σ = 60860800. Its totient is φ = 26991144.

The previous prime is 40783849. The next prime is 40783877. The reversal of 40783851 is 15838704.

It is not a de Polignac number, because 40783851 - 2¹ = 40783849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40785851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681 + ... + 9186.

It is an arithmetic number, because the mean of its divisors is an integer number (3803800).

Almost surely, 2^40783851 is an apocalyptic number.

40783851 is a deficient number, since it is larger than the sum of its proper divisors (20076949).

40783851 is a wasteful number, since it uses less digits than its factorization.

40783851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11015 (or 11009 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 40783851 is about 6386.2235319475. The cubic root of 40783851 is about 344.2146977531.

The spelling of 40783851 in words is "forty million, seven hundred eighty-three thousand, eight hundred fifty-one".