40533443 has 2 divisors, whose sum is σ = 40533444. Its totient is φ = 40533442.

The previous prime is 40533433. The next prime is 40533473. The reversal of 40533443 is 34433504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40533443 - 2¹⁶ = 40467907 is a prime.

It is not a weakly prime, because it can be changed into another prime (40533433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20266721 + 20266722.

It is an arithmetic number, because the mean of its divisors is an integer number (20266722).

Almost surely, 2^40533443 is an apocalyptic number.

40533443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40533443 is an equidigital number, since it uses as much as digits as its factorization.

40533443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 40533443 is about 6366.5880187114. The cubic root of 40533443 is about 343.5087718917.

Adding to 40533443 its reverse (34433504), we get a palindrome (74966947).

The spelling of 40533443 in words is "forty million, five hundred thirty-three thousand, four hundred forty-three".