40434533 has 2 divisors, whose sum is σ = 40434534. Its totient is φ = 40434532.

The previous prime is 40434503. The next prime is 40434539. The reversal of 40434533 is 33543404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28058209 + 12376324 = 5297^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 40434533 - 2¹⁰ = 40433509 is a prime.

It is a Chen prime.

It is equal to p_2458502 and since 40434533 and 2458502 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40434539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20217266 + 20217267.

It is an arithmetic number, because the mean of its divisors is an integer number (20217267).

Almost surely, 2^40434533 is an apocalyptic number.

It is an amenable number.

40434533 is a deficient number, since it is larger than the sum of its proper divisors (1).

40434533 is an equidigital number, since it uses as much as digits as its factorization.

40434533 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 40434533 is about 6358.8153770966. The cubic root of 40434533 is about 343.2291334486.

Adding to 40434533 its reverse (33543404), we get a palindrome (73977937).

The spelling of 40434533 in words is "forty million, four hundred thirty-four thousand, five hundred thirty-three".