18097850 has 24 divisors (see below), whose sum is σ = 33807360. Its totient is φ = 7207920.

The previous prime is 18097817. The next prime is 18097889. The reversal of 18097850 is 5879081.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13511 + ... + 14789.

It is an arithmetic number, because the mean of its divisors is an integer number (1408640).

Almost surely, 2^18097850 is an apocalyptic number.

18097850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18097850 is a deficient number, since it is larger than the sum of its proper divisors (15709510).

18097850 is a wasteful number, since it uses less digits than its factorization.

18097850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 18097850 is about 4254.1567907166. The cubic root of 18097850 is about 262.5481695427.

The spelling of 18097850 in words is "eighteen million, ninety-seven thousand, eight hundred fifty".