18224548 has 6 divisors (see below), whose sum is σ = 31892966. Its totient is φ = 9112272.

The previous prime is 18224539. The next prime is 18224551. The reversal of 18224548 is 84542281.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 7518564 = 3272^2 + 2742^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2278065 + ... + 2278072.

Almost surely, 2^18224548 is an apocalyptic number.

It is an amenable number.

18224548 is a deficient number, since it is larger than the sum of its proper divisors (13668418).

18224548 is a wasteful number, since it uses less digits than its factorization.

18224548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556141 (or 4556139 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 18224548 is about 4269.0219020286. The cubic root of 18224548 is about 263.1594208557.

The spelling of 18224548 in words is "eighteen million, two hundred twenty-four thousand, five hundred forty-eight".