18608898 has 64 divisors (see below), whose sum is σ = 47443968. Its totient is φ = 4725120.

The previous prime is 18608881. The next prime is 18608899. The reversal of 18608898 is 89880681.

It is not an unprimeable number, because it can be changed into a prime (18608899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21286 + ... + 22142.

It is an arithmetic number, because the mean of its divisors is an integer number (741312).

Almost surely, 2^18608898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18608898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23721984).

18608898 is an abundant number, since it is smaller than the sum of its proper divisors (28835070).

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

18608898 is a wasteful number, since it uses less digits than its factorization.

18608898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 18608898 is about 4313.8031943982. The cubic root of 18608898 is about 264.9965491422.

The spelling of 18608898 in words is "eighteen million, six hundred eight thousand, eight hundred ninety-eight".