40823533 has 4 divisors (see below), whose sum is σ = 42972160. Its totient is φ = 38674908.

The previous prime is 40823521. The next prime is 40823537. The reversal of 40823533 is 33532804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40823533 - 2⁵ = 40823501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40823537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074285 + ... + 1074322.

It is an arithmetic number, because the mean of its divisors is an integer number (10743040).

Almost surely, 2^40823533 is an apocalyptic number.

It is an amenable number.

40823533 is a deficient number, since it is larger than the sum of its proper divisors (2148627).

40823533 is a wasteful number, since it uses less digits than its factorization.

40823533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148626.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40823533 is about 6389.3296205471. The cubic root of 40823533 is about 344.3262999327.

The spelling of 40823533 in words is "forty million, eight hundred twenty-three thousand, five hundred thirty-three".