40818433 has 2 divisors, whose sum is σ = 40818434. Its totient is φ = 40818432.

The previous prime is 40818409. The next prime is 40818469. The reversal of 40818433 is 33481804.

40818433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27217089 + 13601344 = 5217^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 40818433 - 2²¹ = 38721281 is a prime.

It is a super-2 number, since 2×40818433² = 3332288945150978, which contains 22 as substring.

It is equal to p_2480458 and since 40818433 and 2480458 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 40818395 and 40818404.

It is not a weakly prime, because it can be changed into another prime (40818233) 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, 20409216 + 20409217.

It is an arithmetic number, because the mean of its divisors is an integer number (20409217).

Almost surely, 2^40818433 is an apocalyptic number.

It is an amenable number.

40818433 is a deficient number, since it is larger than the sum of its proper divisors (1).

40818433 is an equidigital number, since it uses as much as digits as its factorization.

40818433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40818433 is about 6388.9305051785. The cubic root of 40818433 is about 344.3119606768.

The spelling of 40818433 in words is "forty million, eight hundred eighteen thousand, four hundred thirty-three".