40564305 has 12 divisors (see below), whose sum is σ = 70311540. Its totient is φ = 21634272.

The previous prime is 40564291. The next prime is 40564313. The reversal of 40564305 is 50346504.

It can be written as a sum of positive squares in 2 ways, for example, as 14676561 + 25887744 = 3831^2 + 5088^2 .

It is not a de Polignac number, because 40564305 - 2⁵ = 40564273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450670 + ... + 450759.

It is an arithmetic number, because the mean of its divisors is an integer number (5859295).

Almost surely, 2^40564305 is an apocalyptic number.

40564305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40564305 is a deficient number, since it is larger than the sum of its proper divisors (29747235).

40564305 is a wasteful number, since it uses less digits than its factorization.

40564305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901440 (or 901437 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40564305 is about 6369.0113047474. The cubic root of 40564305 is about 343.5959318388.

The spelling of 40564305 in words is "forty million, five hundred sixty-four thousand, three hundred five".