40413563 has 4 divisors (see below), whose sum is σ = 40468128. Its totient is φ = 40359000.

The previous prime is 40413557. The next prime is 40413587. The reversal of 40413563 is 36531404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40413563 - 2⁴ = 40413547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40413523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26156 + ... + 27657.

It is an arithmetic number, because the mean of its divisors is an integer number (10117032).

Almost surely, 2^40413563 is an apocalyptic number.

40413563 is a deficient number, since it is larger than the sum of its proper divisors (54565).

40413563 is an equidigital number, since it uses as much as digits as its factorization.

40413563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54564.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 40413563 is about 6357.1662712249. The cubic root of 40413563 is about 343.1697884696.

Adding to 40413563 its reverse (36531404), we get a palindrome (76944967).

The spelling of 40413563 in words is "forty million, four hundred thirteen thousand, five hundred sixty-three".