18234550 has 12 divisors (see below), whose sum is σ = 33916356. Its totient is φ = 7293800.

The previous prime is 18234529. The next prime is 18234553. The reversal of 18234550 is 5543281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18234553) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 182296 + ... + 182395.

It is an arithmetic number, because the mean of its divisors is an integer number (2826363).

Almost surely, 2^18234550 is an apocalyptic number.

18234550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18234550 is a deficient number, since it is larger than the sum of its proper divisors (15681806).

18234550 is a wasteful number, since it uses less digits than its factorization.

18234550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364703 (or 364698 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 18234550 is about 4270.1932040600. The cubic root of 18234550 is about 263.2075544528.

The spelling of 18234550 in words is "eighteen million, two hundred thirty-four thousand, five hundred fifty".