18528838 has 8 divisors (see below), whose sum is σ = 29256120. Its totient is φ = 8776800.

The previous prime is 18528833. The next prime is 18528841. The reversal of 18528838 is 83882581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18528794 and 18528803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18528833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243763 + ... + 243838.

It is an arithmetic number, because the mean of its divisors is an integer number (3657015).

Almost surely, 2^18528838 is an apocalyptic number.

18528838 is a deficient number, since it is larger than the sum of its proper divisors (10727282).

18528838 is a wasteful number, since it uses less digits than its factorization.

18528838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487622.

The product of its digits is 122880, while the sum is 43.

The square root of 18528838 is about 4304.5136775250. The cubic root of 18528838 is about 264.6159763364.

The spelling of 18528838 in words is "eighteen million, five hundred twenty-eight thousand, eight hundred thirty-eight".