40636533 has 12 divisors (see below), whose sum is σ = 63028320. Its totient is φ = 23220792.

The previous prime is 40636507. The next prime is 40636537. The reversal of 40636533 is 33563604.

It is not a de Polignac number, because 40636533 - 2⁹ = 40636021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40636533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40636537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138073 + ... + 138366.

It is an arithmetic number, because the mean of its divisors is an integer number (5252360).

Almost surely, 2^40636533 is an apocalyptic number.

It is an amenable number.

40636533 is a deficient number, since it is larger than the sum of its proper divisors (22391787).

40636533 is a wasteful number, since it uses less digits than its factorization.

40636533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276456 (or 276449 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 40636533 is about 6374.6790507444. The cubic root of 40636533 is about 343.7997442942.

The spelling of 40636533 in words is "forty million, six hundred thirty-six thousand, five hundred thirty-three".