18449150 has 24 divisors (see below), whose sum is σ = 35117544. Its totient is φ = 7207200.

The previous prime is 18449147. The next prime is 18449183. The reversal of 18449150 is 5194481.

It is a super-2 number, since 2×18449150² = 680742271445000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2141 + ... + 6440.

It is an arithmetic number, because the mean of its divisors is an integer number (1463231).

Almost surely, 2^18449150 is an apocalyptic number.

18449150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18449150 is a deficient number, since it is larger than the sum of its proper divisors (16668394).

18449150 is a wasteful number, since it uses less digits than its factorization.

18449150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636 (or 8631 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 18449150 is about 4295.2473735514. The cubic root of 18449150 is about 264.2360816741.

The spelling of 18449150 in words is "eighteen million, four hundred forty-nine thousand, one hundred fifty".