4098618 has 24 divisors (see below), whose sum is σ = 8966100. Its totient is φ = 1353024.

The previous prime is 4098613. The next prime is 4098637. The reversal of 4098618 is 8168904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3697929 + 400689 = 1923^2 + 633^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4098613) 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, 918 + ... + 3006.

Almost surely, 2^4098618 is an apocalyptic number.

4098618 is an abundant number, since it is smaller than the sum of its proper divisors (4867482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4098618 is a wasteful number, since it uses less digits than its factorization.

4098618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 4098618 is about 2024.5043837937. The cubic root of 4098618 is about 160.0340812816.

The spelling of 4098618 in words is "four million, ninety-eight thousand, six hundred eighteen".