418116845 has 4 divisors (see below), whose sum is σ = 501740220. Its totient is φ = 334493472.

The previous prime is 418116833. The next prime is 418116847. The reversal of 418116845 is 548611814.

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

It can be written as a sum of positive squares in 2 ways, for example, as 265396681 + 152720164 = 16291^2 + 12358^2 .

It is a cyclic number.

It is not a de Polignac number, because 418116845 - 2⁶ = 418116781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 418116799 and 418116808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418116847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41811680 + ... + 41811689.

It is an arithmetic number, because the mean of its divisors is an integer number (125435055).

Almost surely, 2^418116845 is an apocalyptic number.

It is an amenable number.

418116845 is a deficient number, since it is larger than the sum of its proper divisors (83623375).

418116845 is an equidigital number, since it uses as much as digits as its factorization.

418116845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83623374.

The product of its digits is 30720, while the sum is 38.

The square root of 418116845 is about 20447.9056384755. The cubic root of 418116845 is about 747.7662992307.

The spelling of 418116845 in words is "four hundred eighteen million, one hundred sixteen thousand, eight hundred forty-five".