1098648618 has 16 divisors (see below), whose sum is σ = 2268178176. Its totient is φ = 354402720.

The previous prime is 1098648601. The next prime is 1098648623. The reversal of 1098648618 is 8168468901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2953171 + ... + 2953542.

It is an arithmetic number, because the mean of its divisors is an integer number (141761136).

Almost surely, 2^1098648618 is an apocalyptic number.

1098648618 is an abundant number, since it is smaller than the sum of its proper divisors (1169529558).

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

1098648618 is a wasteful number, since it uses less digits than its factorization.

1098648618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906749.

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 1098648618 is about 33145.8687923548. The cubic root of 1098648618 is about 1031.8572135093.

The spelling of 1098648618 in words is "one billion, ninety-eight million, six hundred forty-eight thousand, six hundred eighteen".