18242304 has 36 divisors (see below), whose sum is σ = 48553176. Its totient is φ = 6080512.

The previous prime is 18242293. The next prime is 18242333. The reversal of 18242304 is 40324281.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11109 + ... + 12644.

Almost surely, 2^18242304 is an apocalyptic number.

It is an amenable number.

18242304 is an abundant number, since it is smaller than the sum of its proper divisors (30310872).

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

18242304 is an equidigital number, since it uses as much as digits as its factorization.

18242304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23772 (or 23758 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 18242304 is about 4271.1010290088. The cubic root of 18242304 is about 263.2448576704.

Adding to 18242304 its reverse (40324281), we get a palindrome (58566585).

It can be divided in two parts, 182 and 42304, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 18242304 in words is "eighteen million, two hundred forty-two thousand, three hundred four".