18049750 has 64 divisors (see below), whose sum is σ = 37200384. Its totient is φ = 6528000.

The previous prime is 18049729. The next prime is 18049763. The reversal of 18049750 is 5794081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 31 ways as a sum of consecutive naturals, for example, 131682 + ... + 131818.

It is an arithmetic number, because the mean of its divisors is an integer number (581256).

Almost surely, 2^18049750 is an apocalyptic number.

18049750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18049750 is an abundant number, since it is smaller than the sum of its proper divisors (19150634).

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

18049750 is a wasteful number, since it uses less digits than its factorization.

18049750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 18049750 is about 4248.4997352007. The cubic root of 18049750 is about 262.3153652507.

The spelling of 18049750 in words is "eighteen million, forty-nine thousand, seven hundred fifty".