18072054 has 192 divisors, whose sum is σ = 56609280. Its totient is φ = 4008960.

The previous prime is 18072053. The next prime is 18072077. The reversal of 18072054 is 45027081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18072053) 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 95 ways as a sum of consecutive naturals, for example, 306277 + ... + 306335.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^18072054 is an apocalyptic number.

18072054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18072054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28304640).

18072054 is an abundant number, since it is smaller than the sum of its proper divisors (38537226).

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

18072054 is a wasteful number, since it uses less digits than its factorization.

18072054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 18072054 is about 4251.1238514068. The cubic root of 18072054 is about 262.4233681071.

The spelling of 18072054 in words is "eighteen million, seventy-two thousand, fifty-four".