40803839 has 2 divisors, whose sum is σ = 40803840. Its totient is φ = 40803838.

The previous prime is 40803827. The next prime is 40803857. The reversal of 40803839 is 93830804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40803839 - 2¹² = 40799743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40803799 and 40803808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40803809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20401919 + 20401920.

It is an arithmetic number, because the mean of its divisors is an integer number (20401920).

Almost surely, 2^40803839 is an apocalyptic number.

40803839 is a deficient number, since it is larger than the sum of its proper divisors (1).

40803839 is an equidigital number, since it uses as much as digits as its factorization.

40803839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 40803839 is about 6387.7882713816. The cubic root of 40803839 is about 344.2709213117.

The spelling of 40803839 in words is "forty million, eight hundred three thousand, eight hundred thirty-nine".