18200948 has 12 divisors (see below), whose sum is σ = 33725412. Its totient is φ = 8565120.

The previous prime is 18200947. The next prime is 18200953. The reversal of 18200948 is 84900281.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5513104 + 12687844 = 2348^2 + 3562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200947) 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 3 ways as a sum of consecutive naturals, for example, 133763 + ... + 133898.

It is an arithmetic number, because the mean of its divisors is an integer number (2810451).

Almost surely, 2^18200948 is an apocalyptic number.

It is an amenable number.

18200948 is a deficient number, since it is larger than the sum of its proper divisors (15524464).

18200948 is a wasteful number, since it uses less digits than its factorization.

18200948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267682 (or 267680 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 18200948 is about 4266.2569074072. The cubic root of 18200948 is about 263.0457784384.

The spelling of 18200948 in words is "eighteen million, two hundred thousand, nine hundred forty-eight".