18248872 has 8 divisors (see below), whose sum is σ = 34216650. Its totient is φ = 9124432.

The previous prime is 18248849. The next prime is 18248891. The reversal of 18248872 is 27884281.

It can be written as a sum of positive squares in only one way, i.e., 12068676 + 6180196 = 3474^2 + 2486^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140547 + ... + 1140562.

Almost surely, 2^18248872 is an apocalyptic number.

It is an amenable number.

18248872 is a deficient number, since it is larger than the sum of its proper divisors (15967778).

18248872 is a wasteful number, since it uses less digits than its factorization.

18248872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281115 (or 2281111 counting only the distinct ones).

The product of its digits is 57344, while the sum is 40.

The square root of 18248872 is about 4271.8698482046. The cubic root of 18248872 is about 263.2764469689.

The spelling of 18248872 in words is "eighteen million, two hundred forty-eight thousand, eight hundred seventy-two".