40564810 has 64 divisors (see below), whose sum is σ = 90357120. Its totient is φ = 12890880.

The previous prime is 40564793. The next prime is 40564813. The reversal of 40564810 is 1846504.

40564810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40564810² = 3291007620672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40564813) 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 in 31 ways as a sum of consecutive naturals, for example, 26424 + ... + 27916.

It is an arithmetic number, because the mean of its divisors is an integer number (1411830).

Almost surely, 2^40564810 is an apocalyptic number.

40564810 is an abundant number, since it is smaller than the sum of its proper divisors (49792310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40564810 is a wasteful number, since it uses less digits than its factorization.

40564810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40564810 is about 6369.0509497099. The cubic root of 40564810 is about 343.5973576837.

The spelling of 40564810 in words is "forty million, five hundred sixty-four thousand, eight hundred ten".