1098816258 has 8 divisors (see below), whose sum is σ = 2197632528. Its totient is φ = 366272084.

The previous prime is 1098816223. The next prime is 1098816259. The reversal of 1098816258 is 8526188901.

It is a sphenic number, since it is the product of 3 distinct primes.

1098816258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1098816259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91568016 + ... + 91568027.

It is an arithmetic number, because the mean of its divisors is an integer number (274704066).

Almost surely, 2^1098816258 is an apocalyptic number.

1098816258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1098816258 is a wasteful number, since it uses less digits than its factorization.

1098816258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183136048.

The product of its (nonzero) digits is 276480, while the sum is 48.

The square root of 1098816258 is about 33148.3975178288. The cubic root of 1098816258 is about 1031.9096936633.

The spelling of 1098816258 in words is "one billion, ninety-eight million, eight hundred sixteen thousand, two hundred fifty-eight".