18254312 has 8 divisors (see below), whose sum is σ = 34226850. Its totient is φ = 9127152.

The previous prime is 18254303. The next prime is 18254323. The reversal of 18254312 is 21345281.

It can be written as a sum of positive squares in only one way, i.e., 13734436 + 4519876 = 3706^2 + 2126^2 .

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, 1140887 + ... + 1140902.

Almost surely, 2^18254312 is an apocalyptic number.

It is an amenable number.

18254312 is a deficient number, since it is larger than the sum of its proper divisors (15972538).

18254312 is a wasteful number, since it uses less digits than its factorization.

18254312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281795 (or 2281791 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 18254312 is about 4272.5065242782. The cubic root of 18254312 is about 263.3026053269.

Adding to 18254312 its reverse (21345281), we get a palindrome (39599593).

The spelling of 18254312 in words is "eighteen million, two hundred fifty-four thousand, three hundred twelve".