18248428 has 12 divisors (see below), whose sum is σ = 34837992. Its totient is φ = 8294720.

The previous prime is 18248423. The next prime is 18248441. The reversal of 18248428 is 82484281.

It is not an unprimeable number, because it can be changed into a prime (18248423) 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 3 ways as a sum of consecutive naturals, for example, 207325 + ... + 207412.

It is an arithmetic number, because the mean of its divisors is an integer number (2903166).

Almost surely, 2^18248428 is an apocalyptic number.

It is an amenable number.

18248428 is a deficient number, since it is larger than the sum of its proper divisors (16589564).

18248428 is a wasteful number, since it uses less digits than its factorization.

18248428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414752 (or 414750 counting only the distinct ones).

The product of its digits is 32768, while the sum is 37.

The square root of 18248428 is about 4271.8178800131. The cubic root of 18248428 is about 263.2743117559.

The spelling of 18248428 in words is "eighteen million, two hundred forty-eight thousand, four hundred twenty-eight".