4561018 has 24 divisors (see below), whose sum is σ = 8684064. Its totient is φ = 1776600.

The previous prime is 4561009. The next prime is 4561043. The reversal of 4561018 is 8101654.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4560983 and 4561001.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1038 + ... + 3193.

It is an arithmetic number, because the mean of its divisors is an integer number (361836).

Almost surely, 2^4561018 is an apocalyptic number.

4561018 is a deficient number, since it is larger than the sum of its proper divisors (4123046).

4561018 is a wasteful number, since it uses less digits than its factorization.

4561018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258 (or 4251 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 4561018 is about 2135.6539981935. The cubic root of 4561018 is about 165.8392259605.

The spelling of 4561018 in words is "four million, five hundred sixty-one thousand, eighteen".