40564733 has 4 divisors (see below), whose sum is σ = 44252448. Its totient is φ = 36877020.

The previous prime is 40564729. The next prime is 40564747. The reversal of 40564733 is 33746504.

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 40564733 - 2² = 40564729 is a prime.

It is a super-2 number, since 2×40564733² = 3290995126722578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40564733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40564723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843841 + ... + 1843862.

It is an arithmetic number, because the mean of its divisors is an integer number (11063112).

Almost surely, 2^40564733 is an apocalyptic number.

It is an amenable number.

40564733 is a deficient number, since it is larger than the sum of its proper divisors (3687715).

40564733 is a wasteful number, since it uses less digits than its factorization.

40564733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687714.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 40564733 is about 6369.0449048503. The cubic root of 40564733 is about 343.5971402784.

The spelling of 40564733 in words is "forty million, five hundred sixty-four thousand, seven hundred thirty-three".