18201048 has 64 divisors (see below), whose sum is σ = 47628000. Its totient is φ = 5790720.

The previous prime is 18201041. The next prime is 18201049. The reversal of 18201048 is 84010281.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18201041) 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 15 ways as a sum of consecutive naturals, for example, 51978 + ... + 52326.

Almost surely, 2^18201048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18201048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23814000).

18201048 is an abundant number, since it is smaller than the sum of its proper divisors (29426952).

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

18201048 is a wasteful number, since it uses less digits than its factorization.

18201048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 18201048 is about 4266.2686272667. The cubic root of 18201048 is about 263.0462601813.

The spelling of 18201048 in words is "eighteen million, two hundred one thousand, forty-eight".