18855098 has 4 divisors (see below), whose sum is σ = 28282650. Its totient is φ = 9427548.

The previous prime is 18855079. The next prime is 18855103. The reversal of 18855098 is 89055881.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12837889 + 6017209 = 3583^2 + 2453^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4713773 + ... + 4713776.

Almost surely, 2^18855098 is an apocalyptic number.

18855098 is a deficient number, since it is larger than the sum of its proper divisors (9427552).

18855098 is an equidigital number, since it uses as much as digits as its factorization.

18855098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427551.

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 18855098 is about 4342.2457323371. The cubic root of 18855098 is about 266.1600879296.

The spelling of 18855098 in words is "eighteen million, eight hundred fifty-five thousand, ninety-eight".