1090098618 has 32 divisors (see below), whose sum is σ = 2499080064. Its totient is φ = 310528512.

The previous prime is 1090098617. The next prime is 1090098619. The reversal of 1090098618 is 8168900901.

It is an interprime number because it is at equal distance from previous prime (1090098617) and next prime (1090098619).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1090098618.

It is not an unprimeable number, because it can be changed into a prime (1090098613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24355 + ... + 52662.

It is an arithmetic number, because the mean of its divisors is an integer number (78096252).

Almost surely, 2^1090098618 is an apocalyptic number.

1090098618 is an abundant number, since it is smaller than the sum of its proper divisors (1408981446).

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

1090098618 is a wasteful number, since it uses less digits than its factorization.

1090098618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77366.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 1090098618 is about 33016.6415312036. The cubic root of 1090098618 is about 1029.1735029358.

The spelling of 1090098618 in words is "one billion, ninety million, ninety-eight thousand, six hundred eighteen".