18149298 has 16 divisors (see below), whose sum is σ = 36383520. Its totient is φ = 6035616.

The previous prime is 18149293. The next prime is 18149303. The reversal of 18149298 is 89294181.

It is an interprime number because it is at equal distance from previous prime (18149293) and next prime (18149303).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18149293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (2273970).

Almost surely, 2^18149298 is an apocalyptic number.

18149298 is an abundant number, since it is smaller than the sum of its proper divisors (18234222).

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

18149298 is a wasteful number, since it uses less digits than its factorization.

18149298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081.

The product of its digits is 41472, while the sum is 42.

The square root of 18149298 is about 4260.1992911130. The cubic root of 18149298 is about 262.7967220643.

The spelling of 18149298 in words is "eighteen million, one hundred forty-nine thousand, two hundred ninety-eight".