4531618 has 24 divisors (see below), whose sum is σ = 8517852. Its totient is φ = 1792224.

The previous prime is 4531609. The next prime is 4531619. The reversal of 4531618 is 8161354.

It can be written as a sum of positive squares in 2 ways, for example, as 3814209 + 717409 = 1953^2 + 847^2 .

It is not an unprimeable number, because it can be changed into a prime (4531619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505 + ... + 3052.

Almost surely, 2^4531618 is an apocalyptic number.

4531618 is a deficient number, since it is larger than the sum of its proper divisors (3986234).

4531618 is a wasteful number, since it uses less digits than its factorization.

4531618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586 (or 3579 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 4531618 is about 2128.7597328022. The cubic root of 4531618 is about 165.4821282686.

The spelling of 4531618 in words is "four million, five hundred thirty-one thousand, six hundred eighteen".