290116618 has 48 divisors (see below), whose sum is σ = 510209280. Its totient is φ = 123342560.

The previous prime is 290116613. The next prime is 290116627. The reversal of 290116618 is 816611092.

It is not an unprimeable number, because it can be changed into a prime (290116613) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 261048 + ... + 262156.

It is an arithmetic number, because the mean of its divisors is an integer number (10629360).

Almost surely, 2^290116618 is an apocalyptic number.

290116618 is a deficient number, since it is larger than the sum of its proper divisors (220092662).

290116618 is a wasteful number, since it uses less digits than its factorization.

290116618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 290116618 is about 17032.8100441471. The cubic root of 290116618 is about 661.9993078430. Note that the first 3 decimals are identical.

The spelling of 290116618 in words is "two hundred ninety million, one hundred sixteen thousand, six hundred eighteen".