40564893 has 8 divisors (see below), whose sum is σ = 56438208. Its totient is φ = 25867424.

The previous prime is 40564889. The next prime is 40564897. The reversal of 40564893 is 39846504.

It is an interprime number because it is at equal distance from previous prime (40564889) and next prime (40564897).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40564893 - 2² = 40564889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40564897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293880 + ... + 294017.

It is an arithmetic number, because the mean of its divisors is an integer number (7054776).

Almost surely, 2^40564893 is an apocalyptic number.

It is an amenable number.

40564893 is a deficient number, since it is larger than the sum of its proper divisors (15873315).

40564893 is a wasteful number, since it uses less digits than its factorization.

40564893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587923.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 40564893 is about 6369.0574655910. The cubic root of 40564893 is about 343.5975920294.

The spelling of 40564893 in words is "forty million, five hundred sixty-four thousand, eight hundred ninety-three".