18150528 has 64 divisors (see below), whose sum is σ = 52607520. Its totient is φ = 5498880.

The previous prime is 18150493. The next prime is 18150533. The reversal of 18150528 is 82505181.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 18150495 and 18150504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076 + ... + 6372.

Almost surely, 2^18150528 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 18150528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26303760).

18150528 is an abundant number, since it is smaller than the sum of its proper divisors (34456992).

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

18150528 is a wasteful number, since it uses less digits than its factorization.

18150528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 18150528 is about 4260.3436481110. The cubic root of 18150528 is about 262.8026586147.

The spelling of 18150528 in words is "eighteen million, one hundred fifty thousand, five hundred twenty-eight".