40383851 has 2 divisors, whose sum is σ = 40383852. Its totient is φ = 40383850.

The previous prime is 40383829. The next prime is 40383853. The reversal of 40383851 is 15838304.

It is a happy number.

40383851 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 is a cyclic number.

It is not a de Polignac number, because 40383851 - 2¹⁸ = 40121707 is a prime.

Together with 40383853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40383853) 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, 20191925 + 20191926.

It is an arithmetic number, because the mean of its divisors is an integer number (20191926).

Almost surely, 2^40383851 is an apocalyptic number.

40383851 is a deficient number, since it is larger than the sum of its proper divisors (1).

40383851 is an equidigital number, since it uses as much as digits as its factorization.

40383851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 40383851 is about 6354.8289512779. The cubic root of 40383851 is about 343.0856685209.

The spelling of 40383851 in words is "forty million, three hundred eighty-three thousand, eight hundred fifty-one".