18275544 has 192 divisors, whose sum is σ = 62899200. Its totient is φ = 4852224.

The previous prime is 18275531. The next prime is 18275573. The reversal of 18275544 is 44557281.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18275499 and 18275508.

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 47 ways as a sum of consecutive naturals, for example, 231297 + ... + 231375.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

Almost surely, 2^18275544 is an apocalyptic number.

18275544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18275544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31449600).

18275544 is an abundant number, since it is smaller than the sum of its proper divisors (44623656).

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

18275544 is a wasteful number, since it uses less digits than its factorization.

18275544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 108 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 18275544 is about 4274.9905263053. The cubic root of 18275544 is about 263.4046501636.

The spelling of 18275544 in words is "eighteen million, two hundred seventy-five thousand, five hundred forty-four".