18125448 has 64 divisors (see below), whose sum is σ = 50181120. Its totient is φ = 5409600.

The previous prime is 18125431. The next prime is 18125467. The reversal of 18125448 is 84452181.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18261 + ... + 19227.

It is an arithmetic number, because the mean of its divisors is an integer number (784080).

Almost surely, 2^18125448 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 18125448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25090560).

18125448 is an abundant number, since it is smaller than the sum of its proper divisors (32055672).

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

18125448 is a wasteful number, since it uses less digits than its factorization.

18125448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1054 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 18125448 is about 4257.3992060881. The cubic root of 18125448 is about 262.6815578435.

It can be divided in two parts, 1812 and 5448, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 18125448 in words is "eighteen million, one hundred twenty-five thousand, four hundred forty-eight".