40878563 has 8 divisors (see below), whose sum is σ = 45351360. Its totient is φ = 36531880.

The previous prime is 40878547. The next prime is 40878571. The reversal of 40878563 is 36587804.

It is a happy number.

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

It is not a de Polignac number, because 40878563 - 2⁴ = 40878547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40878563.

It is not an unprimeable number, because it can be changed into a prime (40878503) 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, 30845 + ... + 32142.

It is an arithmetic number, because the mean of its divisors is an integer number (5668920).

Almost surely, 2^40878563 is an apocalyptic number.

40878563 is a deficient number, since it is larger than the sum of its proper divisors (4472797).

40878563 is a wasteful number, since it uses less digits than its factorization.

40878563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63057.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 40878563 is about 6393.6345688505. The cubic root of 40878563 is about 344.4809474052.

The spelling of 40878563 in words is "forty million, eight hundred seventy-eight thousand, five hundred sixty-three".