18244048 has 10 divisors (see below), whose sum is σ = 35347874. Its totient is φ = 9122016.

The previous prime is 18244019. The next prime is 18244049. The reversal of 18244048 is 84044281.

It can be written as a sum of positive squares in only one way, i.e., 18215824 + 28224 = 4268^2 + 168^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18244049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570111 + ... + 570142.

Almost surely, 2^18244048 is an apocalyptic number.

It is an amenable number.

18244048 is a deficient number, since it is larger than the sum of its proper divisors (17103826).

18244048 is a wasteful number, since it uses less digits than its factorization.

18244048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140261 (or 1140255 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 18244048 is about 4271.3051869423. The cubic root of 18244048 is about 263.2532463111.

The spelling of 18244048 in words is "eighteen million, two hundred forty-four thousand, forty-eight".