40384563 has 16 divisors (see below), whose sum is σ = 55211520. Its totient is φ = 26249184.

The previous prime is 40384543. The next prime is 40384567. The reversal of 40384563 is 36548304.

It is not a de Polignac number, because 40384563 - 2⁶ = 40384499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40384567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18645 + ... + 20697.

It is an arithmetic number, because the mean of its divisors is an integer number (3450720).

Almost surely, 2^40384563 is an apocalyptic number.

40384563 is a deficient number, since it is larger than the sum of its proper divisors (14826957).

40384563 is a wasteful number, since it uses less digits than its factorization.

40384563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40384563 is about 6354.8849714216. The cubic root of 40384563 is about 343.0876848018.

The spelling of 40384563 in words is "forty million, three hundred eighty-four thousand, five hundred sixty-three".