1098842518 has 8 divisors (see below), whose sum is σ = 1659326400. Its totient is φ = 545733720.

The previous prime is 1098842497. The next prime is 1098842519. The reversal of 1098842518 is 8152488901.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098842519) 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, 1843398 + ... + 1843993.

It is an arithmetic number, because the mean of its divisors is an integer number (207415800).

Almost surely, 2^1098842518 is an apocalyptic number.

1098842518 is a deficient number, since it is larger than the sum of its proper divisors (560483882).

1098842518 is a wasteful number, since it uses less digits than its factorization.

1098842518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687542.

The product of its (nonzero) digits is 184320, while the sum is 46.

The square root of 1098842518 is about 33148.7936130412. The cubic root of 1098842518 is about 1031.9179139435.

The spelling of 1098842518 in words is "one billion, ninety-eight million, eight hundred forty-two thousand, five hundred eighteen".